The two expressions below are equivalent. Find the values of a and b that make them equivalent.

The two expressions are:
5x^2+bx-12
(5x+a)(x-4)

Answers

Answer 1

Answer:

[tex]a=3\text{ and } b=-17[/tex]

Step-by-step explanation:

We are given that:

[tex]5x^2+bx-12=(5x+a)(x-4)[/tex]

First, we can distribute the right-hand side:

[tex]5x(x-4)+a(x-4)[/tex]

Distribute:

[tex]=5x^2-20x+ax-4a[/tex]

Rewrite:

[tex]=5x^2+(-20+a)x-(4a)[/tex]

Since it is equivalent to the above expression, the coefficients of the variables must match. This means that:

[tex]-20+a=b\text{ and } 12=4a[/tex]

Solving for a in the second equation gives:

[tex]a=3[/tex]

Therefore:

[tex]b=-20+3=-17[/tex]


Related Questions

Complementary angles are two angles whose measures have a sum of 90 degrees. Angles x and y are complementary. The measure of angle x is 24 degrees greater than the measure of angle y. Determine the measures of angles x and y.

Answers

Show me a picture of u have it so I can answer
Using the equation (x+24)+x=90 you figure out the X = 33 so y equals 33 and x equals 57

Evaluate the expression for d = 4, f = –3, and g = –12.

fg − d + f = ?

Answers

d= fgf+g-F

Step-by-step explanation:

F = fg f + g - d  solve the equation for d

Solve for d means we need to get 'd' alone

To get 'd' alone we need to move all the remaining terms to the other  side

F = fg f + g - d

First we subtract fgf on both sides

F - fg f = g - d

Now we subtract g on both sides

F - fg f - g = - d

now divide all the term by -1, so sign changes for all terms

-F + fgf +g = d

so d= fgf+g-F

Answer:29

Step-by-step explanation:

[-3 ✖ -12] ➖ 4 ➕ 3

♒36 ➖ 7

♒ 29.✔

I hope i helped you

How to solve this question?

Answers

Answer:

total volumA.4ft³ is your answere

h=d=1.5ft

r=1.5/2=0.75ft

total volume=volume of (cylinder + hemisphere)

=πr²h+2/3πr³=πr²(h+2/3r)=22/7×0.75²(1.5+2/3 ×0.75)=3.53=4ft³

The Answer is A. 4ft3

Choose the set of measurements listed in order from least to greatest.
A. 5 g, 5 g, 5 mg
B. 5 g, 5 mg, 5 kg
C. 5 mg, 5 g, 5 kg
D. 5 mg, 5 kg, 5 g

Answers

Answer:

5mg, 5g,5kg.........................

C. 5 mg, 5 g, 5 kg.

please help me on this im so overwhelmed right now

Answers

he hiked 15 miles on friday
15 i believe
Hopefully it’s good :)

Pls help due in 15 mins

Answers

1) y = 8 x = 7.5
2) y = 3 x = 12
Y is 8 x is 7.5 for number one
Number two is y is 3 x is 12

A shoe store buys a pair of boots from a supplier for b dollars. The store's manager decides on a markup of 35%. Write TWO expressions for the retail price of a pair of boots.

Answers

Answer:

x is the retail price

b/x 35/100 and cross multiply?

or 100b/35x

(this is the only thing i can think of)

Step-by-step explanation:

X would be the answer I hope it helps :)

helpppppppppppppppppppppppp

Answers

Answer:

1.

Step-by-step explanation:

The answer is 9.25h - 7.50

Simplify each product.
–3c(8 + 2c)


A. -24c - 6c^2

B. -24c + 6c^2

C. -24c - 6c

D. -24c + 6c

Answers

Answer:

Its A

Step-by-step explanation:

It’s A -24c-6c^2 please give me Brainlist me I hope this helps

okay so im in a math zoom and to leave i need to finish a math problem.
its 'like units'
1 2/5 + 1/3
he wants the new problem and answer

Answers

Answer:

1 11/15

Step-by-step explanation:

2/5x3=6/15

1/3x5=5/15

add them both up and you get 1 11/15

Answer:

1 11/15

Step-by-step explanation:

you convert 2/5 and 1/3 denominators till they are the same, which is 15

then you have to times the numerator by how much you times the denominator

times 2/5 numerator by 3, and 1/3 numerator by 5  

then you add them together which makes 1 11/15

At the IGA, a 5 lb bag of apples costs $5.85. What is the unit rate for the 5 lb bag?

Answers

The unit rate for 5 lb bag is 1.75 lb
1.17. to change the 5 into a 1, you would divide by 5. since you did it to the 5, you also have to do it to the 5.85. so it’s 5.i5 divided by 5

Olivia Stout
5 of 6Items














Yolanda created a scatter plot of the relationship between the number of times she visited different friends each month, y, and the distance in miles each friend lives from her home, x. She calculated the equation of the trend line to be y=−3.5x+20. Use this information to predict the number of times in one month Yolanda would visit a friend who lives 4 miles from her home

Answers

Answer:Step-by-step explanation:

For ellieb6437
and
Wolfgirl

LETS GOOOO

My question: How do you win a board game w/ your siblings? lol

Answers

Answer:

you Cheat  and out smart them

Step-by-step explanation:

Answer:

cheat

Step-by-step explanation:

makes the most sense

Describe the intersection of each plane and solid.

Answers

Answer:

triangle=3

circle=1

rectangle=2

Step-by-step explanation:

The intersection of the plane and the solid has

1. Circular cross section.

2. Rectangular cross section.

3. Triangular cross section.

1. Since the base is circular and the plane through the solid is parallel to it, the base is also round.

As a result, the intersection of the plane and the solid has a Circular cross section.

2. Since the plane through the solid is parallel to it, the side is rectangle is also round.

As a result, the intersection of the plane and the solid has a Rectangular cross section.

3. The intersection of the plane and the solid has a Triangular cross section.

Learn more about Solid and plane here"

https://brainly.com/question/1609720

#SPJ2

Please help me with the question on the bottom one please

Answers

13!!!
Because 21+3=24
So you will need to subtract 24-11

Answer:

13 = y

Step-by-step explanation:

21 + 3 = y + 11

(21+3=24)

24 = y + 11

-11          -11

13 = y

The cost to rent a boat can be modeled by the equation C = 18h + 35 where C is the total cost in dollars and h is the number of hours in which the boat is rented.

What is the rate of change?

Answers

Answer:

18

Step-by-step explanation:

Slope, rate of change, unit rate, speed are synonyms

y = mx + b

Slope "m" is a rate of change.

~~~~~~~~~~

C = 18h + 35

m = 18

The rate of change from the given equation is 18 dollars per hour

Given :

The cost to rent a boat can be modeled by the equation C = 18h + 35

Where h is the number of hours and 'C' is the total cost

Rate of change represents the cost to rent a boat for one hour .

From the given equation , [tex]C=18h+35[/tex]

35 is the initial cost and 18 is the cost to rent a boat every hour

The rate of change is cost to rent a boat for one hour that is our slope.

Slope is 18

The rate of change is 18 dollars per hour

Learn more :  brainly.com/question/15976923

I’m soooo sorry but can y’all plzzz help me just a couple more times!

Answers

Answer:

26/35

Step-by-step explanation:

Each fraction is increasing by 1/35. Therefore, 25/35 + 1/35 = 26/35.

Answer:

[tex]\frac{26}{35}[/tex]

Step-by-step explanation:

We have four fractions and asked to find the next fraction in the sequence.

The four fractions are increasing one by one by first glance, therefore to find the answer we need to add 1/25 to the last value seen.

What is 1 + 25?

26

[tex]\frac{26}{35}[/tex]

Show all work and use complete sentences to answer the following question.



The graph shows the calories burned for hiking and downhill skiing.



Find the slope of each line. Interpret each slope.

I NEED HELP-

Answers

Answer:

skiing- 8/1

hiking- 6/1

Step-by-step explanation:

if you have any more questions then comment on this post

skiing slope is 8
hiking slope is 6

Question:
32 + 4/7w

w = -1/2

Answers

Answer:

31 5/7 is the answer

Plug w into the equation and then solve
32+4/7(-1/2)
=222/7 (final answer)

Can someone plz help me!!

Answers

Answer:

104

Step-by-step explanation:

as we increase 2 in each number

Answer:

104

Step-by-step explanation:

Are you in kindergarten

Write an explanation of how to subtract two linear expressions.

Answers

Change subtraction to addition

A company produces fruity drinks that contain a percentage of real fruit juice. Drink A contains 25% real fruit juice and Drink B contains 20% real fruit juice. Company made 280 liters of fruity drinks with 61 liters of real fruit juice. Write a system of equations that could be used to determine the number of liters of Drink A made and the number of liters of Drink B made. Define the variables that you use to write the system.

Answers

Answer:

x = amount of real fruit juice used to make Drink A

y = amount of real fruit juice used to make Drink B

Step-by-step explanation:

Let

x = amount of real fruit juice used to make Drink A

y = amount of real fruit juice used to make Drink B

1. The company used 100.5 liters of real fruit juice, then

2. Drink A:

x = amount of real fruit juice used

percentage of real fruit juice

Then

5x = amount of drink A produced

Drink B:

y = amount of real fruit juice used

percentage of real fruit juice

Then

amount of drink B produced

The company makes 30 more liters of Drink A than liters of Drink B, so

The system of two equations i

Answer:

A =  liters of drink A at 10% real fruit juice

B = liters of drink B at 30% real fruit juice

A + B = 360

0.1*A + .3*B = 78 liters

Step-by-step explanation:

A =  liters of drink A at 10% real fruit juice

B = liters of drink B at 30% real fruit juice

A + B = 360

0.1*A + .3*B = 78 liters

Then you can solve.

A = 360 - B

36 - 0.1B + 0.3 B = 78

0.2B = 42

B = 210 liters

A = 150 liters

i hope this helps!

hello there I need help! no rush! 938-(87+301 )

Answers

550 is the answer to the math problem

This table shows the results of drawing a playing card from a bag without looking.


Using these results, what is the probability that a diamond will be drawn next?
the cards are hearts which have 8 dimand has 4 the clover has 3 and the last one has 5

Answers

Answer:

40%

Step-by-step explanation:

8+4+3+5=20

20×5=100

So then multiply each number by 5 to find the percentage.

8×5=40

What is the equation of the line pictured?

HELP ASAP!
posted Feb 19 4:13 pm

Answers

y=2/1x+4
i hope this helps
Yes that’s right nice one

Martin has four comic books and four novels. He wants to choose one comic book and one novel randomly. How many outcomes are in this sample space?

Answers

10 outcomes are in space

Answer:

10 outcomes. that is the answer to your question.

please help me on the question on the bottom

Answers

Answer: 4

Step -by-step :
7+7+7=21
5+12+a=
17+a
21-17=4
The answer is 4. Hope this helps you!

PLEASE HELP ME ON THE BOTTOM PART PLEASE

Answers

Answer: If I am correct it should be.. 65

Step-by-step explanation:

Which describes the cross section of the cube that passes through the vertices A, B, and C shown below?

A cube. The cross section is a triangle.
a rectangle that is not a square
a square
a triangle with three equal sides
a triangle with only two equal sides

Answers

Answer:

A triangle with three equal sides

Step-by-step explanation:

C; a triangle with three equal sides

pls do this I only need smart people

Answers

I got this I’ll send in a picture!
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