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Llana [10]
2 years ago
10

jillian is trying to save water, so she reduces the size of her square grass lawn by 8 feet on each side. the area of the smalle

r lawn is 144 square feet. in the equation (x – 8)2 = 144, x represents the side measure of the original lawn. what were the dimensions of the original lawn? 4 feet by 4 feet 8 \sqrt[6]{2} feet by 8 \sqrt[6]{2} 8 - \sqrt[6]{2} feet by 8 \sqrt[6]{2} 20 feet by 20 feet
Mathematics
1 answer:
Amanda [17]2 years ago
7 0
(x - 8)² = 144

Take square root of both sides

(x - 8) = √144

x - 8 = 12

x = 12 + 8

x = 20

Original lawn is = 20 feet * 20 feet square  
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Estimate the solution to the system of equations.
Leona [35]

Answer:

\sf C)  \  x = -1\dfrac{2}{5}  , \  y =  \ 1\dfrac{3}{5}

Given equations:

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<u>Make x the subject in equation 1</u>:

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<u>Substitute this into equation 2</u>:

2(y - 3) - 7y = -14

2y - 7y = -14 + 6

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  y = -8/-5

  y = 1.6

Then x = y - 3

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1 year ago
Equation of the line passing through (7,5) and (1, 2)​
Trava [24]

Answer:

y = \frac{1}{2}x + \frac{3}{2}

Step-by-step explanation:

Assuming this is a linear equation in the form of y = mx + b, we can first solve for the slope using \frac{y_2 - y_1}{x_2 - x_1}, for these points, the slope would be \frac{1}{2}. Now we plug in the points to get the equation:

plugging in (7,5), we get 5 = \frac{1}{2} ×7 + b

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therefore, the equation of the line passing through (7,5) and (1,2) is y = \frac{1}{2}x + \frac{3}{2}.

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6 0
1 year ago
44) The difference of two numbers is 76. The second number is 20% of the first number. What are the numbers?
Nina [5.8K]

Answer:

C

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3 0
3 years ago
What numbers add to 2 and multiply to -56
marta [7]

The numbers are irrational, so they can't be exactly written down
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5 0
3 years ago
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If the radius is 18 cm and the angle at centre of circle is 120° then the
PolarNik [594]

The area of a sector is 339.336 cm²

The area of a sector is defined to be as the region of space bounded by a boundary from the center of the circle.

It can be determined by using the formula:

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Then. the area of the sector can be calculated as:

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Learn more about the area of a sector here:

brainly.com/question/7512468?referrer=searchResults

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