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3 years ago

12

The formula for finding the circumference of a circle is C =Xxd where C is the circumference and d is the diameter. Use 3. 14 as

an
estimate for x
What is the circumference of a circle with a diameter of 10 inches?
A 13. 14 inches
B, 15.70 inches
C 31.40 inches
D. 78.50 inches

1 answer:

Over [174]3 years ago

6 0

Answer: C

Step-by-step explanation:

C=2πr

d=2

C=πd=π·10≈31.41593in

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Answer:

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Step-by-step explanation:

The probability that the random variable X takes the value x is given by P(X=x) = $25Cx 0.05^x0.95^{25-x}$ . Then,

(a) $P(X\leq) = (25C0)(0.05^0)(0.95^{25}) + (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23})= 0.873$

(b) $P(X\geq5) = 1-P(X\leq4) = 1 - (0.873 + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21})) = 1 - (0.873 + 0.12) = 0.007$

(c) $P(1\leqX\leq4) = (25C1)(0.05^1)(0.95^{24}) + (25C2)(0.05^2)(0.95^{23}) + (25C3)(0.05^3)(0.95^{22}) + (25C4)(0.05^4)(0.95^{21}) = 0.715$

(d) $P(X=0) = (25C0)(0.05^0)(0.95^{25}) = 0.277$

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2 years ago

Changing Bases to Evaluate Logarithms in Exercise, use the change-of-base formula and a calculator to evaluate the logarithm. Se

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Answer:

The question is incomplete, the complete question is "Changing Bases to Evaluate Logarithms in Exercise, use the change-of-base formula and a calculator to evaluate the logarithm. See Example 9. $log_{4}7$ .

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Step-by-step explanation:

From the general properties or laws of logarithm, we have the

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where both log are now express in the natural logarithm base.

i.e $log_{a}b=\frac{lnb}{lna}\\$

hence we can express our $log_{4}7=\frac{ln7}{ln4} \\$ .

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Hence $log_{4}7=\frac{ln7}{ln4}=\frac{1.9459}{1.3863}\\$ .

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2 years ago

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Answer:

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3 years ago

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Read 2 more answers

HELP ASAP WILL REWARD THIRTY POINTS.

OverLord2011 [107]

D.Annulus
is the correct answer....

HOPE IT HELPS YOU '_'

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2 years ago