Mathematics College

4j + 4 =
Next, subtract 4 from both sides.
4j

Answers

Answer 1

Answer:

4j=-4

j=-1

Step-by-step explanation:

Answer 2

Answer:

4j=-4  j=-1

Step-by-step explanation:

Related Questions

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Write an equation of the parabola that passes through the point (62,−490) and has x-intercepts −8 and 72. Then find the average rate of change from x=−8 to x=2.

Answers

Answer:

y =  0.7(x^2 - 64x - 576)

Average rate of change = -49.

Step-by-step explanation:

As the x intercepts are -8 and 72 we can write the equation

y = a(x + 8)(x - 72)     where a is some constant to be found.

As it passes through point  (62, -490) we have, substituting:

-490 = a(62+8)(62-72)

-490 =  - 700a

a = 0.7

So the equation of the parabola

y = 0.7(x + 8)(x - 72) or

y =  0.7(x^2 - 64x - 576).

Average rate of change between x = -8 and x = 2

=  [0.7(2+ 8)(2 - 72) -  0.7(-8+8)(-8-72)] / (2 - -8)

= -490 - 0 /10

= -49

Solve using inverse operations. Show your work. 3(-n + 4) + 5n = 2n

Answers

Answer:

no solution

Step-by-step explanation:

-3n + 12 + 5n = 2n

subtract 2n from both sides to get all the n’s on one side

-3n - 2n + 5n + 12 = 0

Combine n’s Which actually cancel themselves out. This leaves

12 = 0

12 can never equal 0 so there is no solution.

Find the value of x.

Answers

Step-by-step explanation:

the 3rd angle is 60 degrees

as it is an equalateral triangle, all the sides are equal. So we can say that

7x + 19 = 11x - 89

89 + 19 = 11x-7x

108 = 4x

x = 108/4

x = 27

use the coordinates of the labeled points to find the point slope equation of the line (3, -5)

Answers

Answer: y + 5 = -3(x-3)

Step-by-step explanation:

A store is having a sale with a 19% discount on all merchandise. Write an
equation representing between the regular cost of merchandise (r) and
the discount received (d).
Your answer

Answers

Answer:

3

Step-by-step explanation:

Reflect triangle ABC over the x-axis. Then translate the new triangle 5
units to the left. What are the coordinates of the vertices of the final image?

Answers

Answer:

The coordinates of the vertices of the final image will be:

A''(-6, 8), B''(-7, -2), and C''(0, -2)

Hence, option (B) is true.

Step-by-step explanation:

Given the triangle with the vertices

A(-1, -8)B(-2, 2)C(5, 2)

We know that when we reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate reverses its sign.

Thus,

The rule of reflection across the x-axis:

(x, y) → (x, -y)

so

A(-1, -8) → A'(-1, -(-8)) = A'(-1, 8)

B(-2, 2) → B'(-2, -2) = B'(-2, -2)

C(5, 2) → C'(5, -2) = C'(5, -2)

Then, translate the new triangle 5  units to the left

Rule of translating 5 units to the left

(x, y) → (x-5, y)

so

A'(-1, 8) → A''(-1-5, 8) = A''(-6, 8)

B'(-2, -2) → B''(-2-5, -2) = B''(-7, -2)

C'(5, -2) → C''(5-5, -2) = C''(0, -2)

Therefore, the coordinates of the vertices of the final image will be:

A''(-6, 8), B''(-7, -2), and C''(0, -2)

Hence, option (B) is true.

Answer: b

Step-by-step explanation:

Which similarly proves the two triangles are similar?

Answers

Answer:

If their angles are the same, if they are proportional, if it states so

Step-by-step explanation:

I don't see the image you sent, but just naming different things that proves how triangles are similar.

Please help ASAP !! I’ll give brainleist

Answers

Answer:

x=12

y=9

Step-by-step explanation:

Since the two triangles are equal, the hypotenuse of each are equal as well, meaning 2x is equal to x+12.  2 times 12 equals 24, and 12+12 also equals 24.

the shorter sides are also equal to each other, so (y+5) equals (2y-4).  9+5 equals 14, and 2 times 9 minus 4 also equals 14.

a _ variable represented by the symbol h can take on any number of numeric values and allow arithmetic operations to be performed on it

Answers

Answer: It would be a Constant variable.

Hope this helps!

What is the product of 60?

Answers

We divide 60 by 2 as many times as possible to get 60 = 15 x 2 x 2. 2 is a prime number so we don't need to break the 2's down any more. Instead we break 15 down. 15 doesn't divide by 2 so we try the next prime number: 3 Divide 15 by 3 to get 15 = 5 x 3, and so 60 = 5 x 3 x 2 x 2.

Answer:

the product of 60 is 5×3×2×2

150 pounds to 135 pounds

Answers

Answer:

15 pounds

Step-by-step explanation:

150-135

Answer:

15 pounds

Step-by-step explanation:

Any help please I appreciate it

Answers

Answer:

VW = 23

Step-by-step explanation:

Since VU is 31 and part of it (WU) is 8, the remaining (VW) would be 31-8 = 23.

Answer:

23

Step-by-step explanation:

vw= vu-wu

vw=31-8

vw=23

2000x5000000000000000000000000000

Answers

Answer:

your answer is 1e+31

Step-by-step explanation:

Answer:

1e+31

Step-by-step explanation:

Please help me asap!!!

Answers

Answer:

[tex]Area = 25*(10 + w) + 13.5(10 + w)[/tex]

Step-by-step explanation:

Given

Stores and Parking Lots

Required

Determine the area as a sum of area of stores and area of parking lots

First, calculate the area of the stores

The dimension of store A is: 25 by 10

The dimension of store B is: 25 by w

The dimension of stores A and B (as an entity) is: 25 by 10 + w

The area is then calculated as:

[tex]Area = 25 * (10 + w)[/tex] -------- A1

Next, calculate the area of the parking lots

The dimension of parking lot A is: 13.5 by 10

The dimension of parking lot B is: 13.5 by w

The dimension of parking lots A and B (as an entity) is: 13.5 by 10 + w

The area is then calculated as:

[tex]Area = 13.5 * (10 + w)[/tex] -------- A2

The area of the shopping center is then calculated as:

[tex]Area = A_1 + A_2[/tex]

[tex]Area = 25*(10 + w) + 13.5(10 + w)[/tex]

Jada is putting a border around her rectangular garden. The garden is 12.63 meters long and 3.28 meters wide. Compare the estimates to the exact perimeter.

Compare the estimates to the exact perimeter.


The estimate using measurements rounded to the nearest whole number is closer to the exact perimeter.

The estimate using measurements rounded to the nearest tenth is closer to the exact perimeter.

The two estimates are equally close to the exact perimeter.

Neither estimate is close enough to the exact perimeter to be useful.

Answers

Answer:

Part A: C

Part B: B

Part C: 15.91

Step-by-step explanation:

first round the 2 numbers by the tenths. Then round the numbers by ones(whohle number). After that, since ther are four sides we do 12.63 + 3.28 + 12.63 + 3.28 which equals to 15.91.

. The average life span of a huski dog is 4,380 days. How many years is
this?​

Answers

Answer:

it's almost 12 years

Step-by-step explanation:

Answer:

Your answer would be 12 years!

Hope this helps!

Paco buys a total of 15 pencils and markers for $ 11.15. Each pencil costs $ 0.30. Each marker costs $ 1.25

Answers

Answer: Paco bought 7 markers and 8 pencils.

Step-by-step explanation:

Let's define the variables:

P = number of pencils that Paco bought

M = number of markers that Paco bought.

We know that P + M  = 15.

We also know that each pencil costs $0.30 and each marker costs $1.25, and the total price for the whole purchase is $11.15

Then:

P*$0.30 + M*$1.25 = $11.15

Then we have the system of equations:

P + M  = 15

P*$0.30 + M*$1.25 = $11.15

To solve this, we can start by isolating one of the variables in the first equation, let's isolate P.

P = 15 - M

Now we can replace this in the second equation to get:

(15 - M)*$0.30 + M*$1.25 = $11.15

$4.50 - M*$0.30 + M*$1.25 = $11.15

$4.50 + M*$0.95 = $11.15

M*$0.95 = $11.15 - $4.50 = $6.65

M = $6.65/$0.95 = 7

Then paco bough 7 markers, and we can find the number of pencisl by the equation:

P + M = 15

P = 15 - M = 15 - 7 = 8

Then Paco bought 7 markers and 8 pencils.

Last month Maria worked 150 hours. Her friend, Sara, suggested that this month Maria should work 15% more hours than she did last month so she can save for Christmas gifts. If Maria takes Sara’s advice, how many hours will Maria work this month?

Answers

Answer:

Step-by-step explanation:

So, ahem if I am even close to giving you an accurate answer then the logical part of me in my brain is still working. If she worked 150 hours and she were to take Sarah's advice to work 15% more. We first need to know what 15% of 150 is to find that we can do 10 percent of 150 which we put 150. and we move that decimal over one place to the opposite of the side right. What do we get well we get 15.0 and we let that be. Then since we still need to find the other 5% of 150 we can take the 15.0 and divide by 2. We can do 14÷2=7 we can add that to the 15.0, and get 22, now we put that aside then we can do the 1÷2=.5. We can then do 22+.5=22.5. then we have to do 150+22.5=172.5

since it is 15% more than 150. Sorry if this is not very understandable,

incorrect, and confusing I tried. I hope that I helped with something. I try to trick you a bit I hope that you catch on. :)

PLS HELP ASAP... WILL MARK BRAINLIEST!!!!

Parallel lines r and s are cut by two transversals, parallel lines t and u.

How many angles are alternate exterior angles with angle 5?

Answers

Answer:

2 angles

Step-by-step explanation:

only 2 angles are ternate exteriors

Answer: 12

Step-by-step explanation:

I did it

Solute 3x+5=4x in step by step form please

Answers

Final Answer: [tex]x = 5[/tex]

Steps/Reasons:

Hey there!

Step 1: Subtract [tex]3x[/tex] from both sides.

[tex]5 = 4x - 3x[/tex]

Step 2: Simplify [tex]4x - 3x[/tex] to [tex]x[/tex].

[tex]5 = x[/tex]

Step 3: Switch Sides.

[tex]x = 5[/tex]

~I hope I helped you :)!

The cost of gasoline varies directly with the number of gallons bought. If
4 gallons of gasoline cost $16.80, find the cost of 15 gallons.
Help please!

Answers

Answer:63 dollars 16.80÷ 4 = 4.20 4.20 × 15 = 63

Step-by-step explanation:

Which inequality describes all the solutions to 5(3 – x) < -2x + 6?

Answers

Answer:

3 < x

Step-by-step explanation:

1. Use distributive property for 5(3-x)

2. add x to each side

3. subtract 6 from 15

4. divide 3 from 9

3 < x

48/8 = 42/x a. X=42 C. X = 8
b.x = 7
d.X = 6

Answers

Answer:

x=7

Step-by-step explanation:

x*48should be equal to 42*8

A club has 11 members.
a) How many different 3-member committees could the club form?
b) In how many ways can a club president, treasurer, and secretary be chosen?
c) By what factor do the answers in parts b) and c) differ? How do you account for this difference?

Answers

Answer:

good

Step-by-step explanation:

calculate it on alculator

(a) 12 is 15% of what?

Answers

80


hope this helps mate

Please give me the correct answer ​

Answers

Answer:

i dont think so.

Step-by-step explanation:

A passenger train has 812 people seated. Eachtrain cars seat 70 people. How many train cars are filled? How many people are in car not full?

Answers

Answer:

10000sksiiwiwisisis

12 cars filled and 42 are in the car not full

Find the slope of regular AB, and make sure you reduce the fraction to simpelist form 

Answers

haha this is hard LANAKAKKAKSKSJSNSNANAMAIJSJAKAKAKAJJNNSNSNNNSNSNNS

Could I get help on this it’s important!!!

Answers

Answer:

-14, -4, 16, 21, 26

Select the slope and y-intercept of the relationship shown in the table

Answers

Answer:

slope = 0.05, y-intercept = 2,000

Hence, option A is true.

Step-by-step explanation:

x                              y

10, 000                   2,500

20, 000                   3,000

30, 000                    3, 500

Taking two points (10000, 2500) and (20000, 3000) to find the slope between the points

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{3000-2500}{20000-10000}[/tex]

[tex]m=\frac{1}{20}[/tex]

[tex]m=0.05[/tex]

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

where 'm' is the slope and 'b' is the y-intercept

substituting the point (10000, 2500) and m=0.05 in the slope-intercept form

[tex]y=mx+b[/tex]

[tex]2500\:=\:0.05\left(10000\right)+b[/tex]

[tex]500+b=2500[/tex]

[tex]b=2000[/tex]

Thus, the y-intercept is: b=2000

Thus,

slope = 0.05, y-intercept = 2,000

Hence, option A is true.

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