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2 years ago

What's the circumference of a circle with a radius of 7 in? Round your answer to the nearest inch. A. 41 in. B. 44 in. C. 21 in.

D. 14 in.

Mathematics

1 answer:

Simora [160]2 years ago

4 0

$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\ \cline{1-1} r= 7 \end{cases}\implies C=2\pi (7)\implies C=14\pi \implies \stackrel{\textit{rounded up}}{C=44}$

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Factorize x3 -2x2 -5x+6

Advocard [28]

Answer: x³-2x²-5x-6=(x-1)*(x-3)*(x+2).

Step-by-step explanation:

$x^3-2x^2-5x+6=\\\\x^3-2x^2+x-x-5x+6=\\\\(x^3-2x^2+x)-6x+6=\\\\x*(x^2-2x+1)-6*(x-1)=\\\\x*(x-1)^2-6*(x-1)=\\\\(x-1)*(x*(x-1)-6)=\\\\(x-1)*(x^2-x-6)=\\\\(x-1)*(x^2-x-2x+2x-6)=\\\\(x-1)*(x^2-3x+2x-6)=\\\\(x-1)*(x*(x-3)+2*(x-3))=\\\\(x-1)*(x-3)*(x+2).$

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2 years ago

r = 13.1 km., d = ? , C = ? a. d = 26.2 km, C = 82.31 km c. d = 6.55 km, C = 82.31 km b. d = 26.2 km, C = 41.15 km d. d = 6.55 k

DENIUS [597]

Answer is a. d = 26.2 km, C = 82.31 km

D = 2r = 2 x 13.1 = 26.2
C = 2pi r = 2 x 3.14159265359 x 13.1
C = 82.31

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3 years ago

Why might you complete a 1040 instead of a 1040EZ?

Katyanochek1 [597]

Your taxable income must be less than $100,000 and only come in the form of wages

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3 years ago

|-19+9|/3-|14-22|/9 give me an answer

MArishka [77]

Answer:22/

= 2 4/

≅ 2.4444444

Step-by-step explanation:

Add: -19 + 9 = -10

Absolute value: abs(the result of step No. 1) = abs(-10) = 10

Divide: the result of step No. 2 / 3 = 10 / 3 = 3.3333333333333 = 10/

Subtract: 14 - 22 = -8

Absolute value: abs(the result of step No. 4) = abs(-8) = 8

Divide: the result of step No. 5 / 9 = 8 / 9 = 0.88888888888889 = 8/

Subtract: the result of step No. 3 - the result of step No. 6 = 10/

- 8/

= 10 · 3/

3 · 3

- 8/

= 30/

- 8/

= 30 - 8/

= 22/

6 0

1 year ago