3 years ago

A machine paints 158 toy planes in 45 minutes. find the unit rate per hour.

Mathematics

1 answer:

Stella [2.4K]3 years ago

5 0

3.51/1 hope that helps

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Suppose a basketball player has made 217 out of 302 free throws. If the player makes the next 3 free throws, I will pay you $23.

Anna [14]

Answer:

-$0.90

Step-by-step explanation:

There are only two possible outcomes, winning $23 (W) or losing $15 (L). Therefore:

$P(W) + P(L) = 1$

The probability of the player making his next 3 free throws (P(W)) is:

$P(W) = \frac{217}{302}*\frac{217}{302}*\frac{217}{302}\\P(W) = 0.37098$

The probability of the player NOT making his next 3 free throws (P(L)) is:

$P(L) = 1 - P(W) = 1 - 0.37098\\P(L) = 0.62902$

Expected value (EV) is given by the payoff of each outcome multiplied by its probability:

$EV = (23*0.37098) -(15*0.62902)\\EV = -\$0.90$

The expected value of the proposition is -$0.90

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2 years ago

(b^4)^2 ???????????????

Bogdan [553]

Answer:

b^8

Step-by-step explanation:

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3 years ago

The amount of jen's monthly phone bill is normally distributed with a mean of $65 and a standard deviation of 11. what percentag

stepan [7]

It would be 99%. If you draw the normal distribution curve and plot the mean and standard deviation, it might help you visually.

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4 0

2 years ago

Solve the equation z/6 = 1/6 A. z= -36 B. z= 0 C. z= 1 D. z= 36

Elan Coil [88]

B B B

B is the correct answer

3 0

2 years ago

Can someone help me please

Taya2010 [7]

Answer:

n = -1

Step-by-step explanation:

n^2 + 5n + 1 = 3n

N^2 +2n +1 = 0 (subtract 3n from both sides)

(n+1)(n+1) = 0 (factor

n+1 =0; n= -1

n+1 = 0 ; n=-1

4 0

2 years ago