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maria [59]
3 years ago
7

Rihanna planned a rectangular courtyard for a park and made a scale drawing using inches as the unit of measurement. She origina

lly planned for the length of the actual courtyard to be 54 feet, but she decided to change it to 72 feet. If the length of the courtyard is 18 inches in her scale drawing, which statement about the change of scale is true?
Mathematics
2 answers:
nalin [4]3 years ago
7 0

Answer:

36inch to 48inch

Step-by-step explanation:edge2020

Eva8 [605]3 years ago
3 0

Answer:

I think it changed from 36x to 48x

Depending on how you look at it, it could have changed from 3x to 4x or 36x to 48x.

If they said it was 18 feet instead of 18 inches, it would be 3x or 4x, but they had it as inches.

18 inches = 1.5 feet

72/1.5 = 48

54/1.5 = 36

So originally, it would have been a scale of 1 in : 36in , but it changed to 1 in : 48 in  

Sorry if this was confusing.

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Step-by-step explanation:

True

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2) Their slopes are not negative reciprocal -----> are not perpendicular lines

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What is the inverse of the function f(x) = 2x + 1?
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Answer:

f^{-1} = \frac{x-1}{2}

Step-by-step explanation:

f(x) = 2x+1

<em>Replace it with y</em>

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x = 2y+1

<em>Solve for y</em>

x = 2y+1

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Can someone plz help plz show work
aliya0001 [1]

Answer:

<h2>LA = 24 ft²</h2>

Step-by-step explanation:

In the base we have the right triangle. Use the Pythagorean theorem for to calculate the hypotenuse:

h^2=4^2+3^2\\\\h^2=16+9\\\\h^=25\to h=\sqrt{25}\\\\h=5\ ft

The Lateral Area is the sum of the areas of three rectangles:

4\ ft\ \times\ 2\ ft\to A_1=(4)(2)=8\ ft^2\\\\3\ ft\ \times\ 2\ ft\to A_2=(3)(2)=6\ ft^2\\\\5\ ft\ \times\ 2\ \ft\to A_3=(5)(2)=10\ ft^2

The Lateral Area:

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Which of the following number lines represents the solution to m/-2 - 7 = -9?
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Answer:

Step-by-step explanation:

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