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rewona [7]
2 years ago
11

Its asking to expand and simplify an expression for the area of this rectangle. ​

Mathematics
2 answers:
Anettt [7]2 years ago
7 0

Answer:

4x^2 + 11x - 20

Step-by-step explanation:

  1. area is width X height
  2. multiply the width (4x - 5) and the height(X + 4)
  3. I always imagine a multiplication grid for this kind of problem, with X and +4 at the top and 4x and -5 going down, and then combine terms
  4. you get 4x^2 + 11x - 20
atroni [7]2 years ago
5 0

Answer:

(4x-5)(x+4)

  • 4x squared- 16x -5x - 20
  • 4x squared-21x - 20
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balandron [24]

Hello!

To the value of b, or the y-intercept, we need to substitute an ordered pair/point into the given equation.

Since we are given two points, we can use those two points to find two different equations.

Remember that ordered pairs are written as (x, y).

A(-2, 4)

y = -3x + b

4 = -3(-2) + b

4 = 6 + b (subtract 6 from both sides)

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A) Therefore, the equation of the first ordered pair is y = -3x - 2.

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2 = -15 + b (add 15 to both sides)

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<u>Final answers</u>:

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Answer:

The baseball's volume will be less than the number of cubic inches in the display case. The cube's edge will be 8.

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the volume of a cube is the side^3, 512^(1/3)=8. 3. 4/3pi(r^3)/512,  

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Step-by-step explanation:

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