Solve by factoring 2x^2-7x-4=0

Answers

Answer 1
Here is what I got
I have to write 20 words so here they are
Solve By Factoring 2x^2-7x-4=0

Related Questions

20 points!!!!

Determine the area of the composite figure to the nearest whole number.
A)
68 in?
B)
87 in2
C)
110 in2
D)
126 in?

Answers

Should be B! Hope it helps
The answer Is B, hope It helps

Missy started with $217 in her bank account. She deposits $25.50 each week and never withdraws any money. What expression can Missy use to determine her account balance after w weeks?

Answers

Answer: yep

Step-by-step explanation:

Answer:

217+25.5w

ye thats it

Whitney buys a coffee in a cylindrical cup with a cardboard sleeve so the cup isn’t too hot to hold. If the diameter of the sleeve is 5 inches and the height of the sleeve is 4 inches, what is
the surface area of the cardboard sleeve?

Answers

Answer:

102.05 inches squared

PLEASE HELP FAST



What is the volume of this

container?

2 in.
576 in3
6 in.
72 in3
6 in.
8 in.
504 in
648 in?
12 in.

Answers

Answer:

i dont see an image

Step-by-step explanation:

Answer:

504in3 (cubed)

Step-by-step explanation:

What value for x will make the equation true?
−3 ( 7x − 5 ) = 87 + 3x
A. −17/4
B. -3
C. 4
D. 17/3

Answers

Answer:

C . 4

Step-by-step explanation:

step 1 : -3 multiply with inside of the ( 7x-5 )

= -21x + 15

step 2 : then it will be 21x + 15 = 87 + 3x

step 3 : switch between the odds into like this

21x - 3x = 87 - 15

step 4 : subtract it all

18x = 72

step 5 : bring 18 to the other side

x = 72/18

step 6 : to find the ans of x is just calculate them

x = 72 ÷ 18

= 4

Or you can do like these ⬇️

-3 ( 7x - 15 ) = 87 + 3x

21x + 15 = 87 + 3x

21x - 3x = 87 - 15

18x = 72

x = 72/18 or 72÷18

x = 4

Line l will be graphed on the same coodinate grid. The only solution to the system of linear equations formed by lines k and l is (4/3,0). Whitch equation could represent line l. A y=3/4x B y= x+4/3 C y= -3/4x+1 D y= -3/4x+4

Answers

Answer:

C

Step-by-step explanation:

1. Plot each equation + (4/3,0)

What is the radius and diameter of the following circle?

Answers

Answer:

Radius = 16cm

Diameter = 32cm

Step-by-step explanation:

The Radius of a circle is half the diameter of the circle. The radius is how far the outside of the circle is from the middle of the circle. To find the Diameter add the radius twice, for example 16+16. Don’t forget your UNIT it is in Centimeters in this case.

The radius is 16

Diamiter is 32

Find the area of the isoscelus, full working out x

Answers

Answer:

60

Step-by-step explanation:

Use the Pythagorean Theorem to find the height. 13 squared minus 5 squared=144

Square rt= 12

Now use the formula (base times height) divided by 2  

(10 x 12)/2

120/2

60

Please help me with this.. its the last question and I dont get it. its just number 12 please help

Answers

Answer:

Lawrence was incorrect.

Step-by-step explanation:

Amy: 2(3x) +2(4x + 3)

= 14x + 6 ✓

Kaye: 3x + 3x + 4x + 3 + 4x + 3

= 14x + 6 ✓

Lawrence: 4(3x) + 2(4x)

= 20x Ø

Sufjan: 6 + 3x + 3x + 4x + 4x

14x + 6 ✓

Please!! Can someone give me the correct answer to this problem

I will mark you brainliest for the correct answer

This is a important test

Answers

Answer:

J = 124

Step-by-step explanation:

The angle ofis suplementary so

j+56=180

Step 1 Subtract 56 from both sides.

j+56−56=180−56

j=124

A square pyramid has a base length of 4 inches. The height of each triangular face is 12 inches. What is the surface area of the pyramid?

Answers

Answer:

The surface area of the given pyramid is 112 [tex]inches^{2}[/tex].

Step-by-step explanation:

Base length of the pyramid = 4 inches

Area of the base = [tex]length^{2}[/tex]

                            = [tex]4^{2}[/tex]

                            = 16

Area of its base = 16 [tex]inches^{2}[/tex]

Area of one of its triangular surface = [tex]\frac{1}{2}[/tex] x base x height

                                 = [tex]\frac{1}{2}[/tex] x 4 x 12

                                 = 2 x 12

                                 = 24 [tex]inches^{2}[/tex]

Area of all its four triangular surfaces = 4 x 24

                                                       = 96 [tex]inches^{2}[/tex]

surface area of the pyramid = sum of areas of all its surfaces

                                               = 16 + 96

                                       = 112 [tex]inches^{2}[/tex]

The surface area of the given pyramid is 112 [tex]inches^{2}[/tex].

Lisa works at a music store. Last week she sold 6 more than 3 times the number of CDs that she sold this

week. Lisa sold a total of 110 CDs over the two weeks. Find the number of CDs she sold last week and the

number of CDs she sold this week.

Answers

Answer:

This week sales = 26

Last week sales = 84

Step-by-step explanation:

Let this week sales = x

Sales last week = 6 + 3x

Sales last week + this week = 110

x + (6 + 3x) = 110

x + 6 + 3x = 110

6 + 4x = 110

4x = 110 - 6

4x = 104

x = 26

This week sales = 26

Last week sales = 6 + 3(26) = 84

A company has offices in two different countries. The 125 employees at location A have a mean commute time of 40 minutes and a standard deviation of 15 minutes. The 250 employees at location B have a mean and standard deviation of 35 and 10 minutes, respectively.
Every month, the company takes separate random samples of 20 employees from each location for a survey. Each time, they look at the difference in the mean commute time sampled from each location

Consider the formula: ...
Why is it not appropriate to use this formula for the standard deviation of ...
Choose
A. The samples are not independent of each other.
B. We cannot assume independence for the employees sampled from location A.
C. We cannot assume independence for the employees sampled from location B.

Answers

Answer:

B

Step-by-step explanation:

We cannot assume independence for the employees sampled from location A.

It is not appropriate to use this formula for the standard deviation of

A. The samples are not independent of each other.

What is the difference between the sample and the population?

The entire group about whom you want to make conclusions is referred to as a population.

The particular group from which you will gather data is known as a sample. The sample size is always smaller than the population as a whole.

We cannot rely on the workers' sampled employees' independence.

Assuming independence based on the 10% condition requires at least 200 employees in the population with a sample size of 20, however, location A only has 125 employees.

learn more about sample types in statistics here :
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389 / 106
Round off to the nearest whole number ​

Answers

Answer:

4

Step-by-step explanation:

389 / 106 = 3.66981132

Since 6 is more than 4, we round up, so 3 ---> 4

Hope that helps!

-Sabrina

328 x 36 Step by step

Answers

Answer:11808

Step-by-step: so start by putting the 328 on top of 36 then after multiple 6 by 8 2 and 3 then bring down the answers then do a 0 then multiply 3 by 8 2 and 3 and you get 11808

Solve the equation, Write One solution, No solution and Infinitely Many Solution
1. X = X + 10 ________,_________

Answers

Answer:

No Solution.

Step-by-step explanation:

x=x+10

x-x=10

0=10

1/3 of 18 helpp please

Answers

Answer:

6

Step-by-step explanation:

the answer to 1/3 of 18 is 6.

Maria who is 6 feet tall stand 20 feet away from the base of a tree she looks up at the top of the tree at 43° angle of elevation what is the approximate height of the tree rounded to the nearest 10th but

Answers

Answer:

24.7 feet

Step-by-step explanation:

Maria who is 6 feet tall stands 20 feet away from the base of a tree she looks up at the top of the tree at a 43° angle of elevation.

what is the approximate height of the tree rounded to the nearest 10th?

We solve the above question using the Trigonometric function of Tangent

tan θ = Opposite/Adjacent

θ = Angle of elevation

Adjacent = Distance from the base of the tree = 20 feet

Opposite => Height of the tree = x

θ = 43°

tan 43 = x/ 20 feet

x = tan 43 × 20 feet

x = 18.650301723 feet

Approximately = 18.7 feet

We are told in the question that Maria is 6 feet tall

Therefore, the height of the tree = Maria's height + Height

= 6 feet + 18.7 feet

= 24.7 feet

If m∠ABC = 48, what is m∠ABD?​

Answers

Answer:

if BD the bisector of angle ABC,

then Angle ABD = 1/2 * angle ABC

= 1/2 * 48

= 24

Answer:

24 °

Step-by-step explanation:

m< ABD = m< CBD + m< DBA

= 28 ÷ 2 = 24 °

7 berries are 5 less than twice the number of berries Mickey had for lunch.
A. 7=5-2 B.5=2m-7 C.7=2m-5 D.12=m/2

Answers

It would be c 7=2m-5

12 3/5 x 30 =
tyyyyyy

Answers

12 3/5 x 30 = 378

Can I get brainliest?

Answer:

378 is the answers it's not hard

simplify 6bab+ 12
bc​

Answers

The answer is 4/12 :) good luck!

repost because i forgot the equation

! 20 points !
someone please help me

Answers

Answer:

x=(-3/4)-(5y/4)

Step-by-step explanation:

hello again, the answer is x=(-3/4)-(5y/4). solve using system of equations. please give brainliest

Answer:

Infinitely many solutions

Step-by-step explanation:

=> -16x - 20y = 16 => - 4(4x + 5y) = 12

=> 4x + 5y = 12/(-4) => 4x + 5y = -3 .. (1)

=> 8x + 10y = - 6 => 2(4x + 5y) = - 6

=> 4x + 5y = -6/2 => 4x + 5y = - 3 ...(2)

Note that both the equations come out be same on simplification. It means, we are given with only 1 equation that is 4x + 5y = -3, and since there is nothing more about this, equation would give different values of y for infinitely many random values of x.

Thus,

Equation has infinitely many solutions.

18/? = ?/5 = 6? This is so confusing to me omg

Answers

Answer:

18/3=30/5=6

Step-by-step explanation:

Help with math please. Thank you!

Answers

Answer:

which one 1st page or 2nd page or both's answer you want

Answer:

Step-by-step explanation:

Being co- interior angle.

Sum of co - interior angle is always 180°.

Hence,angle UTY + angle RWX=180°

Darcie wants to crochet a minimum of 3 blankets to donate to a homeless shelter. Darcie crochets at a rate of 1/15 blanket per day. She has 60 days until when she wants to donate the blankets, but she also wants to skip crocheting some days so she can volunteer in other ways.
Write an inequality to determine the number of days, s, Darcie can skip crocheting and still meet her goal.

Answers

Answer:

Since Darcie wants to crochet a minimum of 3 blankets and she crochets at a rate of 1/5 blanket per day, we can determine how many days she will need to crochet a minimum of 3 blankets following the next steps:

- Finding the number of days needed to crochet one (1) blanket:

\begin{gathered}1=\frac{1}{5}Crochet(Day)\\Crochet(Day)=5*1=5\end{gathered}

1=

5

1

Crochet(Day)

Crochet(Day)=5∗1=5

So, she can crochet 1 blanket every 5 days.

- Finding the number of days needed to crochet three (3) blankets:

If she needs 5 days to crochet 1 blanket, to crochet 3 blankets she will need 15 days because:

\begin{gathered}DaysNeeded=\frac{NumberOfBlankets}{Rate}\\\\DaysNeeded=\frac{3}{\frac{1}{5}}=3*5=15\end{gathered}

DaysNeeded=

Rate

NumberOfBlankets

DaysNeeded=

5

1

3

=3∗5=15

- Writing the inequality

If she has 60 days to crochet a minimum of 3 blankets but she can complete it in 15 days, she can skip crocheting 45 days because:

AvailableDays=60-RequiredDaysAvailableDays=60−RequiredDays

AvailableDays=60-15=45DaysAvailableDays=60−15=45Days

So, the inequality will be:

s\leq 45s≤45

The inequality means that she can skip crocheting a maximum of 45 days since she needs 15 days to crochet a minimum of 3 blankets.

Have a nice day!

Why tan(π/4) = 1 can you explain it simply? Also can we use it with cos, cot, sin, sec and cosec? Thanks! please, please dont write random answers it may be reported.

Answers

Answer:

1) tan π/4 = 1

2) cos π/4 = 0.7071

3) cot π/4 = 1

4) sin π/4 = 0.7071

5) sec π/4 = 1.4142

6) cosec π/4 = 1.4142

Step-by-step explanation:

Angle π is in radians

But converting to degree, it is;

π = 180˚

Thus; π/4 = 180/4 = 45°

Thus;

1) from calculator; tan π/4 = tan 45° = 1

2) from calculator, cos π/4 = cos 45° = 0.7071

3) cot is equivalent to 1/tan

Thus; cot π/4 = 1/(tan π/4) = 1/tan 45 = 1/1 = 1

4) from calculator, sin π/4 = sin 45° = 0.7071

5) sec in trigonometry is equivalent to 1/cos.

Thus;

sec π/4 = 1/cos π/4 = 1/cos 45° = 1/0.7071 = 1.4142

6) cosec in trigonometry is equivalent to 1/sin

Thus;

cosec π/4 = 1/sin π/4 = 1/sin 45° = 1/0.7071 = 1.4142

Kara is sorting buttons by length for a craft project.The line plot shows of each button.If kara lines up all the 3/4 inch buttons What would be the total

Answers

Required picture attached below :

Answer:

2 1/4 inches

Step-by-step explanation:

From the line plot Given ;

The frequency or number of 3/4 inch button is 3

Therefore, lining up all the 3/4 inch button in the plot, we have :

3/4 + 3/4 + 3/4

(3 + 3 + 3) /4

9 /4

2 1/4 inch

Find the following arc measures
For question 1,3

Answers

Answer:

1) arc JL = 127°

arc JML = 233°

3) arc DE = 104°

arc FE = 76°

arc DEF = 180°

arc CFD = 284°

arc DFE = 256°

Step-by-step explanation:

1) arc JL = 127°

arc JML = 360 - 127 = 233°

3) arc DE =104°

arc FE = 180 - 104 = 76°

arc DEF = 180°

arc CFD = 180 + 104 = 284°

arc DFE = 360 - 104 = 256°

The angles arc measures are,

1) arc JL = 127°

arc JML = 233°

3) arc DE = 104°

arc FE = 76°

arc DEF = 180°

arc CFD = 284°

arc DFE = 256°

What is the angle of the circle?

An angle of a circle is an angle that is formed between the radii, chords, or tangents of a circle. We saw different types of angles in the Angles section, but in the case of a circle, there, basically, are four types of angles. These are central, inscribed, interior, and exterior angles.

1) arc JL = 127°

arc JML = 360 - 127 = 233°

3) arc DE =104°

arc FE = 180 - 104 = 76°

arc DEF = 180°

arc CFD = 180 + 104 = 284°

arc DFE = 360 - 104 = 256°

To learn more about the angle visit:

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I WILL GIVE BRANLEST IF U HELP ME AND FAST CLASS IS ALMOST OVER AND ITS DUE BEFORE CLASS ENDS

Answers

Answer:

9,099 9,505

Step-by-step explanation:

Answer:

First one, Second one, third one, fourth one, and last one

Step-by-step explanation:

All of em but the fourth one...

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