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Flauer [41]
3 years ago
5

If you have a semi-circle with a diameter of 8.6ft, what's the semi-circles area?

Mathematics
1 answer:
galben [10]3 years ago
3 0
So,

The diameter is 8.6ft.  We need to convert to radius.

2 radius = 1 diameter

8.6/2 = 4.3 ft.

\pi r{2}

\pi  4.3^{2}

\pi 18.49

3.14(18.49)

58.0586ft.²

Divide by 2 (semi-circle)
29.0293ft.²
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PL has endpoints P(4, −6) and L(−2, 1). The segment is translated using the mapping (x, y) → (x 5, y). What are the coordinates
cestrela7 [59]

The coordinates of P' is (9, -6) and L' is (3, -1).

<h2>Given that</h2>

PL has endpoints P(4, −6) and L(−2, 1).

The segment is translated using the mapping (x, y) → (x + 5, y).

<h3>We have to determine</h3>

What are the coordinates of P’ and L’?

<h3>According to the question</h3>

PL has endpoints P(4, −6) and L(−2, 1).

The segment is translated using the mapping (x, y) → (x + 5, y).

The coordinates of point P after translation using mapping is,

\rm P(x, \ y) - P'(x+5, y)\\&#10;\\&#10;P(4, -6) - P'(4+5, \ -6)\\&#10;\\&#10;P(4, -6) - P'(9, -6)\\

And the coordinates of point L after translation using mapping is,

\rm L(x, \ y) - L'(x+5, y)\\\\L(-2, 1) - L'(-2+5, \ -1)\\\\L(4, -6) - L'(3, -1)\\

Hence, The coordinates of P' is (9, -6) and L' is (3, -1).

To know more about Translation click the link given below.

brainly.com/question/26298109

8 0
2 years ago
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Financial planners recommend that families save about 5% of their take-home pay. Ed and Sherrie save $90 each pay period from th
Ratling [72]

Answer:

Ed and Sheerie save 7.5%.

Step-by-step explanation:

This question can be solved using a rule of three.

Ed and Sherrie save $90 each pay period from their combined paychecks, which total $1200. What percent do Ed and Sherrie save?

How much of $1200 is $90? $1200 is 100% = 1, $90 = x. So

$1200 - 1

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x = \frac{90}{1200}

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Ed and Sheerie save 7.5%.

7 0
3 years ago
4x – 4 = – 12<br> X = ?<br> What is X ?
maxonik [38]

Answer:

X=-2

Step-by-step explanation:

4x-4=-12

Add 4 on both sides

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4x=-8

Divide by 4 on both sides

÷4 ÷4

X=-2

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3 years ago
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Quintin stopped and bought 16.9 gallons of gas at a rate of $3.75 per gallon. How much did Quintin pay for the gas?
zmey [24]

Answer:

63.375 or $63.38

Step-by-step explanation:

Multiply the two numbers

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Point A(–4, 2) is reflected over the line x = 3 to create the point A'. What are the coordinates of A'?. . A. (–4, –1). B. (–4,
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The answer is D (10,2)
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