Helppppppppppppp pls

Helppppppppppppp Pls

Answers

Answer 1

Answer: x = -1 , F

Step-by-step explanation:

Hard to see your pic, but

[tex](-b+\sqrt{b^{2}-4ac } )/2a\\(-b-\sqrt{b^{2}-4ac } )/2a[/tex]

[tex](-5-\sqrt{5^{2}-16} ) / 8 = -1[/tex]

Answer 2

Your answer is: x = -1


Related Questions

The slope of MN¯¯¯¯¯¯¯ is −3.

Which segments are parallel to MN¯¯¯¯¯¯¯?

Answers

The segments are parallel to TU and WX

So, The correct options are 2 and 3

Given,

The slope of MN is -3

To find the which segments are parallel to MN?

Now, According to the given options:

We know that,

The slope of parallel lines are always equal. Therefore the line which have slope -3 is parallel to MN.

The formula to find the slope is:

m = [tex]\frac{y_{2}-y_{1} }{x_{2} -x_{1} }[/tex]

Now, Slope for PQ,

[tex]m_{1} = \frac{7-6}{8-3}[/tex]    = 1/5

Slope for TU,

[tex]m_{2} = \frac{10-1}{5-8} =[/tex] -3

Slope for WX,

[tex]m_{3} = \frac{0-6}{4-2} = \frac{-6}{2} =[/tex] -3

Slope for RS,

[tex]m_{4} = \frac{2-3}{4-1} =[/tex] -1/3

Therefore, The segments are parallel to TU and WX

So, The correct options are 2 and 3

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In September, a website had 12,719 visitors. In October, the website had 24,150 more visitors
than it did in September. The website had the same number of visitors in November as it did in
October. How many visitors did the website have in September, October, and November
combined?

Answers

Answer:

86457

Step-by-step explanation:

A physics student walks 100 meters in 80 seconds. The student stops for 30 seconds, and then walks 200 meters farther in 90 seconds. What is the average speed of the entire walk?.

Answers

The average speed of the student for his entire walk is equal to 1.5 m/s. Therefore, option (b) is correct.

What is the average speed?

The average speed of a body is calculated as the total distance traveled in a fixed interval of time. The average speed can be determined by dividing the total distance traveled by a body by the total time.

The average velocity is a single value if the object moves uniformly. Speed is a scalar quantity, it has no specified direction. The average speed has the S.I. unit the same as velocity i.e. m/s.

Given the distance covered by a student in first 80 sec = 100m

After stooping for 30sec again cover a distance of 200m in 90sec.

The total distance traveled by the student = 100 + 200 = 300m

The time taken by student to cover distance =  80 + 30 +90 = 200 sec

The average speed of the student = total distance/ total time taken

                                                          = 300/200 = 1.5 m/s

Therefore, the average speed of the student is equal to 1.5m/s.

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If f(x) = 1/x which equation describes the graphed function? Apex ...

Answers

Answer: A
1) horizontal translation 2 units left (x+2)
2) vertical translation 1 unit down (-1)

The equation that describes the graphed function [tex]f(x) = \frac{1}{x}[/tex]  is option A:[tex]y = (x + 2) - 1.[/tex] This is shown in the graph given below, and transformation is translation.

To mathematically derive this equation, start with the original function [tex]f(x) = \frac{1}{x}[/tex].

The given function [tex]f(x) = \frac{1}{x}[/tex] has a reciprocal relationship between x and y.

To perform a horizontal translation 2 units left, substitute (x + 2) for x. This gives:[tex]f(x + 2) = \frac{1}{x + 2}[/tex].

Next, to achieve a vertical translation 1 unit down, subtract 1 from the function.

Thus, [tex]f(x + 2) - 1 = \frac{1}{x + 2}- 1[/tex].

Simplifying further, combine the terms gives:

[tex]y = (x + 2) - 1.[/tex]

This equation represents the original function :

[tex]f(x) = \frac{1}{x}[/tex]

After a horizontal translation of 2 units left and a vertical translation of 1 unit down.

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Refer to the figure below if m<2 = (a+15)
, and m<3=(a+35) find the value of a that :-P hi

Answers

The value of a that makes ∠2 and ∠3 perpendicular is 20.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Equations are classified based on degree (value of highest exponents) as linear, quadratic, cubic and so on. Variables can be dependent or independent. Dependent variables depend on other variable while an independent variable do not depend.

From the image, HL is perpendicular to HJ, hence:

m∠2 + m∠3 = 90° (Definition of perpendicular)

Substituting gives:

(a + 15) + (a + 35) = 90

2a + 50 = 90

a = 20

value of a = 20

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Find the equation of the line that is parallel to the line y = -3x + 2 and passes through the point (-8 , 1). Write the equation in the point slope form.

Please help !!
(College Algebra)

Answers

Answer:

y - 1 = - 3(x + 8)

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 2 ← is in slope- intercept form

with slope m = - 3

• Parallel lines have equal slopes

the equation ofa line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

here m = - 3 and (a, b ) = (- 8, 1 ) , then

y - 1 = - 3( x - (- 8) ) , that is

y - 1 = - 3(x + 8)

Write and solve an equation to solve the problem. lisa is 4 centimeters taller than her friend lan. lan is 8 centimeters taller than jim. every month, their heights increase by 2 centimeters. in 4 months, the sum of lan's and jim's heights will be 170 centimeters more than lisa's height. how tall is lan now? let h be lan's height today in centimeters.

Answers

After solving an equation as per given relation of Lan, Lisa and Jim height ,now Lan's height is 174centimeters.

As given ,

Let h be Lan's height today in centimeters.

As per the relation between  Lan, Lisa and Jim height we have,

Lan=h cm

Lisa=h + 4

Jim=h -8

After 4 months, every month their heights increase by 2 cm

Lan=h + 8

Lisa=h + 4 +8

Jim=h -8 +8

Required equation for given condition:

Lan + Jim=170 +Lisa

⇒h +8 + h -8 + 8=170 + h + 4+8

⇒2h+8=h+182

⇒h=174cm

Therefore, after solving an equation as per given relation of Lan, Lisa and Jim height ,now Lan's height is 174centimeters.

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Please help with the questions provided in the pictures below

Answers

Answer:

the answer is gonna be d

Step-by-step explanation:

Determine the total surface area of the composite shape below ​

Answers

Answer:

118.558 cm^2

Step-by-step explanation:

Ok, a rectangular cube and a Cylinder.

Let's start with the rectangular cube.

SA= 2(lw + lh + wh)

total surface area = 94 cm^2

Now the Surface Area of the of the Cone.

A=2πrh+2πr^2

A=2πrh+2πr^2=2·π·1·5+2·π·1^2≈37.69911 cm^2

Since the cone is standing on top of the rectangular cube, we need to deduct just the area of the circle.

A=πr2=π·12≈3.14159 cm^2

So, 84 cm^2 + 37.69911 cm^2 - 3.14159 cm^2

Sum the quantities:

84 cm^2 + 37.6991 cm^2 - 3.14159 cm^2

Sum the numbers 84 + 37.7 - 3.142 = 118.558:

Answer: 118.558 cm^2

Andrea is buying some new shirts and sweaters. She is able to buy 5 shirts and 3
sweaters for $89 or she is able to buy 9 shirts and 8 sweaters for $207. How much
does a shirt cost? How much does a sweater cost?

Answers

Answer: Shirt = $7 and Sweater = $18

Step-by-step explanation:

5 Shirts, 3 sweaters = $89   (1)
9 Shirts, 8 sweaters = $207 (2)

1 Shirt = $?

1 Sweater = $?

Shirts = x

sweaters = y

(1) -> 5x + 3y = 89

(2) -> 9x + 8y = 207

(1) * 8 = 40x + 24y = $712

(2) * 3 = 27x + 24y = $621

(1) single out 24y -> 24y = $712 - 40x

put value of 24 y into (2)

(2) -> 27x + $712 - 40x = $621

Now solve

-13x = $-91

remove negative -> 13x = $91

x = $7

So a shirt is $7

And we can put $7 into (1) at the start -> 5(7) + 3(y) = $89

35 + 3y = $89

3y = $54

y = $18

Hence x = $7 and y = $18

So Shirt = $7 and Sweater = $18

A ball is thrown into the air with an upward volocitt o 12ft/se. The equation for the ball’s heigh (h) at any time (t) is h (t) =-4t^2+12t+5 find the time(s) at which the ball reaches a height of 10ft. Express solutions as decimals rounded to tenths place. Separate solutions with a comma with leaving any space

Answers

The required time at which the ball reaches a height of 10 ft is 0.5 sec.

Given that,
A ball is thrown into the air with an upward velocity o 12ft/s. The equation for the ball’s height (h) at any time (t) is h (t) =-4t^2+12t+5 find the time(s) at which the ball reaches a height of 10ft.

Here,
Given equation,
h(t) =-4t²+12t+5
For height 10 ft time,
10 = -4t² + 12t + 5
4t² - 12t + 5 = 0
4t² -10t - 2t + 5 = 0
2t(2t - 5) - 1(2t - 5) = 0
(2t-1)(2t -5) = 0
t = 1/2, 5/2  (5/2 can be negelected)

Thus, the required time at which the ball reaches a height of 10 ft is 0.5 sec.

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16 Oz for $2,24 ounces for $3

Answers

Using  Unitary Method  16 Oz for $2,24 ounces for $3 is a true statement.

As given in the question,

16 Oz for $2,24 ounces for $3 is solved by Unitary Method as follows:

16 Oz for $2

24 ounces for $3

Above statement is true.

If $2 fetches 16 Oz

then $1 will fetch 8 Oz

hence $3 will fetch 24 Oz (by Unitary Method)

Thus the given statement is true.

Alternately, the statement can be verified to be true or false as follows:

16 Oz for $2

1 Oz for $(2/16)

24 Oz for $ (24x2/16) = $3

Therefore, the given statement is valid and true. The Unitary Method has been applied either way to check the validity of the given statement and found to be valid (true). It is worthwhile to mention that Oz stands for ounces (abbreviation)

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Use the four-step procedure for solving the following variation problem
The height that a ball bounces varies directly as the height from which it was dropped. A tennis ball dropped from 14 inches bounces 8.4 inches. From what height was the tennis ball dropped if it bounces
42 inches?
The tennis ball needs to be dropped from the height of
(Type an integer or a decimal)
so that it bounces 42 inches.
9

Answers

Height was the tennis ball dropped if it bounces 42 inches is 0.7 inch.

What do you understand by direct proportionality?

If two quantities are directly proportional, it means that when one quantity increases at a certain rate, the other quantity also increases at the same rate up to a constant value. It is represented by the proportional symbol ∝.

Let the height of the ball bounces be h

The height of the ball drobbed from be y

It is given that the height that a ball bounces varies directly as the height from which it was dropped.

h ∝ y

h = ky where k is the constant of proportionality.

It is given that a tennis ball dropped from 14 inches.

⇒ y = 14 inches

Tennis ball bounces back to 8.4 inches.

⇒ h = 8.4 inches

⇒ 8.4 = k × 14

⇒ k = 8.4/14 = 0.6

Now, tennis ball dropped from 42 inches

y = 42

⇒ h = 42 × 0.6 = 0.7

Therefore, height was the tennis ball dropped if it bounces

42 inches is 0.7 inch.

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The number m and 58 are additive inverses. Drag and drop 58 and m to their correct positions on the number line.

Answers

The value of m which is an additive inverse of 58 is -58.

What numbers are additive inverses?

Additive inverse is what you add to a number to make the sum zero. When two numbers are added together to get 0, then we say both the numbers are additive inverses of each other.

Since m is the additive inverse of 58, hence:

m + 58 = 0m = -58

The additive inverse of 58 is -58.

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what is the answer for D

Answers

Answer:

Where's a photo or sum??

Find measure of angle g rounded to the nearest degree

Answers

We need to know about trigonometry to solve this problem. The measure of angle G is 27.9°

Trigonometry is related to functions of angles and their applications. There are six main functions of an angle, sine, cosine, secant,cosecant,tangent and cotangent. Here in this question we know the measure of all the sides of the triangle, and the angle T is 90°. We will be using the function tangent(tan) to solve for angle G. The base of the triangle is RG and the height is TR.

RG=8  TR=15

tan G=base/height=RG/TR=8/15=0.533

G=[tex]tan^{-1}[/tex] 0.53=27.9°

Therefore the measure of the angle G is 27.9°.

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help me please help help​

Answers

According to the solving the following equation:

The standard form: x³ + 3x² - 6x - 8

degree: 3

constant term: 8

How are polynomials created?

A polynomial is a mathematical equation made up of variables, constants, and exponents that are mixed using addition, subtraction, multiplication, and division operations.

What are the polynomial's rules?

No part of an algebraic expression should be - Variables' square roots. variable powers that are fractional. variable powers that are negative. variables in any fraction's denominator.

According to the given data:

Given polynomial, (x + 4) (x - 2) (x + 1)

Keeping the third bracket constant while simplifying the first two results in,

= (x² - 2x + 4x - 8)(x +1 )

= (x² + 2x - 8)(x+1)

On further simplifying we get,

= x³ + 2x² +x² -8x +2x -8

= x³ + 3x² - 6x - 8

So, the standard form is x³ + 3x² - 6x - 8  , degree is 3, leading co-efficient is 1 and the constant term is -8

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greastest common factour and the distrabutive property 18+24

Answers

Answer:

6(3 + 4)

Step-by-step explanation:

GCF of 18 and 24 is 6

6 (3 + 4)

I hope this helps!

Which statement cannot be assumed based on the diagram?

A) <GBE and <DBC are adjacent
B) <DBC is vertical to <FDE
C) <EDF and <EDC are adjacent
D) <ABG and <GBD are adjacent.

Answers

The statement that cannot be assumed based on the figure is that

<DBC is vertical to <FDE. This makes option B the answer.

Why < DBC is vertical to < FDE cannot be assumed in the given figure

The given data consist of various intersections and line types however the line type used to vertical angles are not among.

The line type responsible for vertical angles or used for vertical angle theorem is the parallel lines and a transversal line. This two lines are used together to prove or get angles that are vertical

We can therefore conclude that <DBC is vertical to <FDE is the the correct option

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Which two situations result in a solution of 0?

Responses

On Tuesday morning, the temperature outside is −5∘F. On Tuesday night, the temperature outside is 5∘F. How much does the temperature change from Tuesday morning to Tuesday night?

On Tuesday morning, the temperature outside is − − 5 ∘ ∘ F. On Tuesday night, the temperature outside is 5 ∘ ∘ F. How much does the temperature change from Tuesday morning to Tuesday night?

On Friday morning, a student earns $35 mowing lawns. On Friday night, the student spends the $35 while out with friends. How much of the money that the student earns from mowing lawns is left?

On Friday morning, a student earns $ 35 mowing lawns. On Friday night, the student spends the $ 35 while out with friends. How much of the money that the student earns from mowing lawns is left?

A vacationer goes scuba diving and is at a depth of −30 yards during the dive. Later in the day, the vacationer hikes up to a lookout 30 yards above the ocean. What is the vertical distance between the diving position and the lookout position?

A vacationer goes scuba diving and is at a depth of − − 30 yards during the dive. Later in the day, the vacationer hikes up to a lookout 30 yards above the ocean. What is the vertical distance between the diving position and the lookout position?

A student walks 5 blocks west to school then another 10 blocks west after school. How far is the student from the starting location?

A student walks 5 blocks west to school then another 10 blocks west after school. How far is the student from the starting location?

A student owes a friend $7.50. If the student pays the friend $7.50, how much does the student owe the friend?

A student owes a friend $ 7.50 . If the student pays the friend $ 7.50 , how much does the student owe the friend?

Answers

The two situations which would result in a solution of 0 include the following:

B. On Friday morning, a student earns $35 mowing lawns. On Friday night, the student spends the $35 while out with friends. How much of the money that the student earns from mowing lawns is left?

D. A student owes a friend $7.50. If the student pays the friend $7.50, how much does the student owe the friend?

What is an expression?

An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.

For this exercise, the expression which represents the first situation is given by:

Amount of money left = $35 - $35

Amount of money left = 0

For this exercise, the expression which represents the second situation is given by:

Amount of money owed = $7.50 - $7.50

Amount of money owed = 0.

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Mr. Jones jogs the same route each day. The amount of time he jogs is inversely proportional to his jogging rate.

What option gives possible rates and times for two of his jogs

Answers

5 mph for 2 hours and 4 mph for 3 hours

4 mph for 2.25 hours and 6 mph for 1.5 hours

gives possible rates and times for two of his jogs

1.Let's determine the relationship between the rate of jogging and the time f jog in each scenario.

First Rate = [tex]\frac{6}{1.5} =4[/tex]  time = 1.5 hours

Second Rate =  [tex]\frac{5}{1.25} = 4[/tex] time = 1.5 hours

As a result, in this instance, the duration of his runs does not appear to be inversely related to their intensity.

2.First Rate = [tex]\frac{5}{2} =2.25[/tex]  time = 2 hours

Second Rate =  [tex]\frac{4}{3} =1.33[/tex] time = 3 hours

Therefore, in this instance, the duration of his runs appears to be inversely related to his pace.

3.First Rate = [tex]\frac{4}{2.25}[/tex]=1.77  time = 2.25 hours

Second Rate =  [tex]\frac{6.5}{1.5} =4[/tex] time = 1.5 hours

Therefore, in this instance, it appears that the duration of his runs is inversely related to his speed.

4.First Rate = [tex]\frac{4.5}{3}[/tex]=1.5  time = 3 hours

Second Rate =[tex]\frac{6}{4} =1.5[/tex]   time = 4 hours

Therefore, in this instance, it does not appear that the length of time he runs is inversely related to the speed at which he runs.

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Which angle relationships are correct? check all that apply. ∠1 and ∠8 are alternate exterior angles. ∠4 and ∠6 are same side interior angles. ∠5 and ∠7 are vertical angles. ∠2 and ∠8 are corresponding angles. ∠3 and ∠6 are alternate interior angles.

Answers

A) ∠1 and ∠8 are alternate exterior angles

B) ∠4 and ∠6 are same side interior angles

E) ∠3 and ∠6 are alternate interior angles

Let's check the each options.

A) ∠1 and ∠8 are alternate exterior angles

The exterior angles are ∠1, ∠2, ∠7 and ∠8.

This is correct.

B) ∠4 and ∠6 are same side interior angles.

∠4 and ∠6 are inside the line m and n, they are in the same side, you can see it on the figure.

This is correct

C) ∠5 and ∠7 are vertical angles

∠5 and ∠7 are supplementary angles.

This is not correct.

D) ∠2 and ∠8 are  corresponding angles

These are same side of exterior angles.

This is not correct.

E) ∠3 and ∠6 are alternate interior angles

These are interior angles and alternative to each other.

This is correct.

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While the flight some humming birds can flap Thor wings about 500 times in 10 seconds. At this speed how many times might a hummingbird flap it wings in 60 seconds complete the table

Answers

Answer:

I don't see a table :/

Step-by-step explanation:

if a humming bird flaps his/her wings 500 times in 10 seconds you just have to do 500 x 6

humming birds flap their wings about 3000 times per minute

answer: 3,000

"Don't have a good day, have a great day"

-Guy

Is the Ordered Pair (3. – 2) a solution to the following equation? 3x - 2y = 13

Yes, the Ordered Pair is a solution to the equation.

No, the Ordered Pair is NOT a solution to the equation.​

Answers

Yes because 3(3) +-2(-2) is 9+4 and 9+4 equals 13 so yes

Triangle STU with vertices S(- 1, - 6); T(0, - 3) and U(3, - 4) in the line y = - x

Answers

Triangle STU have vertices S'(6,1); T'(3,0) and U'(4,-3) after reflection across y = -x.

The triangles is reflected across the line y = -x.

If any point A(a,b) is reflected across y = -x then the coordinates of x and y axes will be interchanged and the coordinates will become negative,

So the reflected point A' will be (-a,-b).

So, after reflection,

S(-1,-6) will become S'(6,1) after reflection across y = -x.

T(0,-3) will become T'(3,0) after reflection across y = -x.

U(3,-4) will become U'(4,-3) after reflection across y = -x.

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Need help on question 5 please ASAP I’m going to really appreciate it

Answers

Answer:

x+7

Step-by-step explanation:

to shift the function up, you need to add -4x by 4

and to shift the function to the left you need to add 1 by 6

4.) Johnny played a video four times in a row. Each time he played he lost 15 points. How
many points did he lose in all after playing the games?
1-19
2-60
3-(-60)
4- (-19)

Answers

Answer 4x15=60 so he lost 60 point in the game and it’s the 3rd one cause the negative sign is lost it would not be 2 cause there’s no negative sign it’s only 60 cause he didn’t gain 60 he lost 60

pls help ASAP

A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $5.50 per ounce should be mixed with one that costs $8.00 per ounce to make a new 20-ounce alloy that costs $7.00 per ounce?
$5.50 grade oz
$8.00 grade oz

Thank you :)

Answers

Answer and Explanation:

Let x be the total weight of the silver alloy costing $3.50 per ounce and y be the the total weight of the other that costs $7.00 per ounce.

The total weight of the resulting alloy is 30 ounces.

x+y=30x+y=30

Each ounce of the mixture must cost $6.30. The total cost of the resulting silver alloy is:

https://homework.study.com/explanation/a-jeweler-wants-to-make-a-silver-alloy-to-be-used-to-make-necklaces-how-many-ounces-of-a-silver-alloy-that-costs-3-50-per-ounce-should-be-mixed-with-one-that-costs-7-00-per-ounce-to-make-a-new-30-ounce-alloy-that-costs-6-30-per-ounce.html

8 ounces of silver alloy that costs $5.50 per ounce should be mixed with 12 ounces of silver alloy that costs $8.00 per ounce to make a new 20-ounce alloy that costs $7.00 per ounce.

What are Linear Equations?

Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.

Let x be the number of ounces of silver alloy which costs $5.50 per ounce and y be the number of ounces of silver alloy that costs $8.00 per ounce.

We have,

x + y = 20

5.50x + 8.00y = 7 × 20

From the first equation, x = 20 - y

Substituting this in the second equation,

5.5 (20 - y) + 8y = 140

(5.5 × 20) - 5.5y + 8y = 140

110 + 2.5y = 140

2.5y = 30

y = 12

x = 20 - y = 20 - 12 = 8

Hence the number of $5.50 cost per ounce silver alloy used is 8 ounces and the other alloy used is 12 ounces.

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ken and hamid run around a track it takes ken 80 seconds to complete a lap it takes hamid 60 seconds to complete a lap how many laps would they have won to both meet on the starting line

Answers

When Ken and Hamid race around a track, Ken completes a lap in 80 seconds while Hamid completes a lap in 60 seconds. ken will run 3 laps where as Hamid will run 4 laps.

Given that,

When Ken and Hamid race around a track, Ken completes a lap in 80 seconds while Hamid completes a lap in 60 seconds.

We have to find if they had faced off on the starting line, how many laps would they have won.

We have to find the LCM of the 80 and 60.

The prefix "LCM" stands for "Least Common Multiple." The smallest multiple that two or more numbers share is known as the least common multiple.

LCM of 80 and 60 is 240

240=80×3

ken will complete 3 laps.

240=60×4

Hamid will complete 4 laps.

Therefore, ken will complete 3 laps where as Hamid will complete 4 laps.

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Find hcf
a) x³-1, x^4 + x² + 1, x³ + 2x² + 2x + 1​

Answers

Answer:

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In a pond, the primary producer is a green alga, spirogyra; the primary consumer is the crustacean, daphnia; the secondary consumer is a small fish, the bluegill; and the tertiary consumer is a larger fish, the smallmouth bass. What changes can be expected in the pond if the daphnia are killed with pesticides?. liam is neelys supervisor. during neelys yearly written evaluation, liam states that neely has not performed her job well at all, constantly comes in late to work, and stirs up trouble with the other employees. neely is understandably upset and wants to sue liam for defamation. if neely files a lawsuit against liam for libel, neely will probably Explain how this sentence in paragraph 9 contributes to the explanation of democracy in the text:"For the Greeks, the state was not seen as an interfering entity that sought to limit one's freedombut as an apparatus through which the individual could fully express his membership of thecommunity."Common Lit"Greek Government" by Mark Cartwright heloo! i need help with this;)if a box is 216 cm3, what is the edge length? When 0.442g of sodium metal is added to an excess of HCl acid, 4590J of heat are produced. What is the enthalpy of the reaction as written:2Na(s) + 2HCl (aq) yields 2NaCl + H2(g)What is enthalpy of reaction in KJ. I tried to work this out but am not sure if I need to multiply my answer by two because of the 2 moles of Na or if that is accounted for already in the grams of sample.My work as far:chemical reaction is exothermic, so delta H wil be negativeQ=number of moles x delta HThere are 2 moles of Na in equation producing 2 mol NaClNa is 22.989769 g/mol so 0.4429 sample has .4429/22.989769 = 0.019 molDelta H is Q/number of moles-4590J/.019mol = -241,578.9J divided by 1000 is -241.579KJ. (enthalpy)So I wonder if I need to multiply this by 2 since the chemical equation has two molesif so, the answer would be -483.158KJ.IF I'm not using the correct formula to solve, I also need to know that. How did NATO benefit the member nations?A. A single currency was created for all members to trade withB. All members agreed to share one global military forceC. There were no taxes on trade between member nationsD. An attack against one member was seen as an attack against all membership hello please help me i dk An object is suspended from two cables that meet at a point above the object. One cable pulls with a force modeled by F1 = 78i + 44j. The other cable pulls with a force modeled by F2 = 87i + 80j. What is the angle between the cables? Round to the nearest degree.15010810471 8: operating systems move code and data, as necessary, to a portion of the disk that is used as if it were memory, not just disk storage space. this disk location is called . How does humidity affect the movement of the water cycle?(A) High humidity accelerates condensation and precipitation.(B) High humidity levels increase the amount of water on Earth's surface.(C) Low humidity levels increase air temperature.(D) Low humidity levels increase water runoff at higher elevations. Why might landmark civil-liberties cases tend to be brought by unpopular or disadvantaged groups? What are some of the ways in which powerful interests benefit from civil-liberties protections? Divide using either synthetic division or long division.(3x^3 + 4x^2 - x + 7) / (x + 2) Ms. Lantz recently participated in the Rocket Run 5k. The distribution of finishing time for females is approximately normal with a mean of 57 minutes with a standard deviation of 8 minutes. According to the Houston Chronicle, a healthy female person should be able to run a 5K in less than 50 minutes.Part B: Ms. Lantz wanted to use her 5K time to qualify for the Houston Marathon. In order to qualify you need to be in the fastest 20% of times. What finishing time would she need in order to qualify for the Houston Marathon?Answer =___ minutes**Round to the 4th decimal** Determine which integer(s) from the set S:{18, 2, 15, 20} will make the inequality five sixths m minus four is less than one third m plus 5 false. Find the coordinates of point P along the directed line segment AB, from A(-2,-4) to B(6, 1), so thatto PB is 3 to 2 a monopolist makes selfcleaning jackets. at a price of $100 each, it can sell 20 jackets. at a price of $98 each, it can sell 21 jackets. assume the monopolist cannot price discriminate. quizlet Find the distance between each pair of points cept 3) Which equation represents a pt for line that is parallel to the line y=-4x + 5? 1) y=-4x + 3 cept_ = + 5 5 cept for 3) y = 4x+3 ) 4) y = 4x + 5 2) y=-x+ ) " 2. If you had 4.0 grams of oxygen gas, how many total molecules ofthis gas would you have? Can someone pls help meee