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77julia77 [94]
3 years ago
12

A farmer needs to construct a square fence with an area of 121 square feet to hold farm animals. How long does each side of the

fence have to be to fulfill his 121 square foot requirement? (Recall that the area of a square is 2003-04-01-00-00_files/i0190000.jpg, where l is the length of a single side.)
Mathematics
1 answer:
erastovalidia [21]3 years ago
3 0
11 on all sides 
hope this helps

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PLS HELP ILL MARK CROWN
jok3333 [9.3K]

Answer:

4x−7

Step-by-step explanation:

Being given our polynomial:

4x^{2}+ x - 14,

We must find the roots to get our answer.

x = (- 1 ± √(1 - 4*4*(-14)) / 8

x = (- 1 ± √225) / 8

x = ( -1 ± 15) / 8

x₁ = (- 1 + 15)/ 8 = 14/8 = 7 / 4

x₂ = (- 1 - 15) / 8 = - 16/2 = - 8

The factors we came up with:

(x - x₁)(x - x₂)

(x - 7/4)(x + 8)

1/4(4x - 7)(x + 8)

So,

The correct option is C.

:)

6 0
2 years ago
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You are running a fuel economy study. One of the cars you find is blue. It can travel 38 1/2 miles on 1 1/4 gallons of gasoline.
harkovskaia [24]
Answer:

30.8 miles per gallon

Explanation:

1.25 = 38.5

Divide both sides by 1.25

1 = 30.8
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2 years ago
What is the multiplicative inverse of the number 7?
vagabundo [1.1K]

Answer:

1/7

Step-by-step explanation:

Another word for multiplicative inverse is reciprocal

It is the number  that when multiplied by the original number gives you one

7 * x = 1

Divide by 7

7x/7 = 1/7

x = 1/7

The multiplicative inverse of 7 is 1/7

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2 years ago
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What is the slope of the line that passes through the points (-10, 9)(−10,9) and (-12, 7) ?(−12,7)
MAVERICK [17]

Answer:

The slope is 1

Step-by-step explanation:

Equation of the line:

y = x + 19

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If the markup is 30% on a cell phone that has a<br> selling price of $520, what is the initial cost?
Olegator [25]

Answer:

The initial cost of the cell phone was $364

Step-by-step explanation:

Since there was a 30% markup, 70% of the new cost is the initial cost. Multiply 520 by 0.7 on a calculator and you get 364

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2 years ago
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