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Murrr4er [49]
3 years ago
7

A city park commission received a donation of playground equipment from a parents' organization. The area of the playground need

s to be 256 square yards for the children to use it safely. The playground will be rectangular.
The city will also put a fence around the playground. The perimeter, P, of the fence includes the gates. To save money, the city wants the least perimeter of fencing for the area of 256 square yards.

Jovana was trying to find a formula for that perimeter with one side 8 yards longer than the other side using the area. In which step did she make a mistake? Explain her mistake and give the correct formula.

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

step 3 she didn’t distribute the x correctly

Step-by-step explanation:

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5g⁴- 5g³ + 20g² - 20g<br> factor the polynomial
Alina [70]

Answer:

5g⁴- 5g³ + 20g² - 20g

5g(g³-g²+4g-4)

5g(g²(g-1)+4(g-1))

5g(g-1)(g²+4)

7 0
2 years ago
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What is the value of x in the equation 1.5(x + 4) - 3=4.5(x-2)
anyanavicka [17]
Hi there!

The Eqn. is :-

1.5 (x + 4) - 3 = 4.5 (x - 2)

1.5x + 6 - 3 = 4.5x - 9

Combining the like terms :-

1.5x - 4.5x = - 9 - 6 + 3

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x = \dfrac {- 12}{- 3}

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Hence, the required answer is → x = 4

~ Hope it helps!
8 0
3 years ago
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The midpoint of y and 31 is -5. what is y
pochemuha
Y = -41.
EXPLANATION.
if -5 is the midpoint, it must be -5 + 36.
Because there is 36 numbers between 31 and -5.
So -5 + 36 = -41.
4 0
3 years ago
Explain how you can use absolute value to tell wether the sum of two integers is positive or negative
Rudiy27

Step-by-step explanation:

Using absolute value to tell wether the sum of two integers is positive or negative.

Suppose we have a positive integer,

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For any integer x, x + (-x) = 0

3 0
2 years ago
How many soulutions does the system of equations have x-3y=15. and 3x-9y=45
Irina-Kira [14]

Answer:

<h2>Infinitely many solutions</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x-3y=15\\3x-9y=45\end{array}\right\\\\\text{Divide both sides of the second equation by 3}\\\\\dfrac{3x}{3}-\dfrac{9y}{3}=\dfrac{45}{3}\\\\x-3y=15\\\\\text{We received the same equation as the first.}\\\\\bold{CONCLUSION}\\\\\text{The system of equations has infinitely many solutions.}

\left\{\begin{array}{ccc}a_1x+b_1y=c_1\\a_2x+b_2x=c_2\end{array}\right\\\\\text{If}\ a_1=a_2,\ b_2=b_2,\ c_1=c_2,\ \text{then the system of equations}\\\text{ has infinitely many solutions}\\\\\text{If}\ a_1=a_2,\ b_1=b_2,\ c_1\neq c_2,\ \text{then the system of equations}\\\text{has no solutions}\\\\\text{Other the system of equations has one solution.}

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3 years ago
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