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3 years ago

Please answer this correctly

Mathematics

1 answer:

slavikrds [6]3 years ago

7 0

Answer:

19.63

Step-by-step explanation:

If the perimeter is 17.85, then it is equal to 2r+(2*3.14*r)/4. Solving this gives us r=5. Therefore, the quarter circle's area is (3.14*5^2)/4 = 19.625. Rounding this gives us 19.63

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denis-greek [22]

Answer:

Part a) $AB=15\ cm$

Part b) $AB=11.1\ cm$

Part c) $AB=3/5\ cm$

Part d) $AB=3s\ cm$

Step-by-step explanation:

see the attached figure to better understand the question

we know that

To find the length of the image after a dilation, multiply the length of the pre-image by the scale factor

Part a) we have

The scale factor is 5

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(5)=15\ cm$

Part b) we have

The scale factor is 3.7

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(3.7)=11.1\ cm$

Part c) we have

The scale factor is 1/5

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(1/5)=3/5\ cm$

Part d) we have

The scale factor is s

The length of the pre-image is 3 cm

therefore

The length of the image AB after dilation is

$3(s)=3s\ cm$

7 0

3 years ago

Simplify the following expression by combining like terms and factoring. 2(x-6)+4(2x+1)+3

Shkiper50 [21]

Answer:

5(2x - 1)

Step-by-step explanation:

Given

2(x - 6) + 4(2x + 1) + 3 ← distribute both parenthesis

= 2x - 12 + 8x + 4 + 3 ← collect like terms

= (2x + 8x) + (- 12 + 4 + 3)

= 10x + (- 5)

= 10x - 5 ← factor out 5 from each term

= 5(2x - 1) ← in factored form

4 0

3 years ago

If the mean is 2.7 determine the value of x and y

Allisa [31]

Answer:

13.5 and 13.5

Step-by-step explanation:

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3 years ago

Which of the following numbers has a prime factorization of 3 x 3 x 3?

iogann1982 [59]

The answer is d 3x3 is 9...9x3 equal 27

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3 years ago

Read 2 more answers

5, 7, 11, 19.... Neither Geometric Arithmetic

sweet [91]

That’s neither :))))

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3 years ago