4 years ago

45 female signers, 40 male singers, 15 instrumental, what is probability that a set of 3 songs contain 1 male, 1 female, 1 inst.

Mathematics

1 answer:

Fantom [35]4 years ago

8 0

Answer:

5 I think

Step-by-step explanation:

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velikii [3]

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3 years ago

Between x=2 and x=3, which function has a greater average rate of change than f(x)=2^x has?

maxonik [38]

Answer: f(3)

Step-by-step explanation:

First find the formula for the rate of change by taking the derivative of 2^x. Let f(x) equal some hypothetical y-value, then take the natural log of both sides.

$y=2^x\\\ln(y)=x \ln(2)$

Implicitly differentiate the left side and take the derivative of the right side

$\frac{y'}{y} =\ln(2)$

Multiply both sides by 'y' which was defined as 2^x

$y'=\ln(2)*2^x$

Plug in x = 2 and x = 3 to see which slope is larger

$y'=\ln(2)*2^2=4\ln(2)\\y'=\ln(2)*2^3=8\ln(2)$

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3 years ago

The lengths of the sides of a triangle are in a the extended ratio of 3:6:8. The triangles perimeter is 510cm. What are the leng

lisov135 [29]

I think
(Total)
3 : 6 : 8 = 17
(Times by 30 to get total then you times by each ratio/side)

90 : 180 : 240= 510cm

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3 years ago

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Lelu [443]

I don't understand, could you explain further?

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3 years ago

Find the distance (2,-2) and (-8,-2)

Naddik [55]

The distance between the two is 10

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