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Pie
3 years ago
11

What are the zeros of f(x) = x2 + 2x - 80?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
8 0

Answer:

The zeros are 8 and -10, all u have to do is substitute x for those values, factor it, or graph it.

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The 13-foot string is arranged into a rectangle. Let L denote the length of the rectangle,
soldi70 [24.7K]

The expressions for the width, W, and area, A, of the rectangle in terms of L are:

  • W = \frac{13}{2} - L
  • A = \frac{13L - L^{2} }{2}

The expression for the perimeter of a rectangle is given as:

P = 2(L + W)

where L is its length and W its width

a. Given that the perimeter of the rectangle is 13 feet, then;

13 = 2(L + W)

divide through by 2

\frac{13}{2} = L + W

So that;

W = \frac{13}{2} - L

The required formula for the width as a function of L is: W = \frac{13}{2} - L

b. Area of a rectangle can be expressed as;

A = L * W

substitute the expression for width in that of area to have

A = L * ( \frac{13}{2} - L)

  = \frac{13}{2}L - L^{2}

A = \frac{13L - L^{2} }{2}

The expression for the area A is: A = \frac{13L - L^{2} }{2}

Visit: brainly.com/question/10452031

5 0
2 years ago
What is compound interest What is the difference between compounded monthly and<br> continuously
ikadub [295]

Answer:

compostion

Step-by-step explanation:

comPOSTION

6 0
3 years ago
EASY FOR PEOPLE THAT KNOW HOW TO DO MATH, HELP NEEDED
SIZIF [17.4K]

Answer:

1 and 5/24 gallon left

Step-by-step explanation:

https://www.slader.com/discussion/question/mark-wants-to-paint-a-mural-he-has-113-gallons-of-yellow-paint-114-gallons-of-green-paint-and-78-g-2/

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3 years ago
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I need help with this please
Kazeer [188]

Answer:

score = 63

Step-by-step explanation:

1.  To write the proportion take the score of the test over the number of points and set it equal to the percent over 100

score         90

----------- = -----------

70               100

Using cross products

100 * score = 90*70

100 score = 6300

Divide by 100

100/100 * score = 6300/100

score = 63

8 0
3 years ago
What are the solutions of the following equation?<br>4|x - 9| + 9 = -3|x - 9| + 9​
Stells [14]

Answer:

X=9

Step-by-step explanation:

8 0
3 years ago
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