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2 years ago

The radius of the circle above is 34 mm. What is the circumference of the circle? (Use 7 = 3.14.)

1 answer:

7 0

213.52 mm because you have to use the formula (c=2*pi*r). First, you multiply 2 by 3.14, which is 6.28. Then, you multiply 6.28 by the radius,34, and you get 213.52 mm. Hope this helped!!!

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3 years ago

The product of 7 and the sum of a number and -6

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2 years ago

35. What percentage is 12 minutes of 4 hours?

Elodia [21]

Answer:

$5\%$

Step-by-step explanation:

$4h = 4 \times 60 \: minutes \\ = 240 \: min \\ \\ \frac{12}{240} \times 100\% \\ = 5\%$

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3 years ago

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True or False?: To make a sketch of any rational function whose numerator is a number and whose denominator is a factored polyno

sergejj [24]

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Answer is False

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2 years ago

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The probability that an American CEO can transact business in a foreign language is .20. Twelve American CEOs are chosen at rand

NNADVOKAT [17]

Answer with Step-by-step explanation:

We are given that

The probability that an American CEO can transact business in foreign language=0.20

The probability than an American CEO can not transact business in foreign language= $1-0.20=0.80$

Total number of American CEOs chosen=12

a. The probability that none can transact business in a foreign language= $12C_0(0.20)^0(0.80)^{12}$

Using binomial theorem $nC_r(1-p)^{n-r}p^r$

The probability that none can transact business in a foreign language= $\frac{12!}{0!(12-0)!}(0.8)^{12}=(0.8)^{12}$

b.The probability that at least two can transact business in a foreign language= $1-P(x=0)-p(x=1)=1-((0.8)^{12}+12C_1(0.8)^{11}(0.2))=1-((0.8)^{12}+12(0.8)^{11}}(0.2))$

c.The probability that all 12 can transact business in a foreign language= $12C_{12}(0.8)^0(0.2)^{12}$

The probability that all 12 can transact business in a foreign language= $\frac{12!}{12!}(0.2)^{12}=(0.2)^{12}$

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2 years ago