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mixer [17]
3 years ago
11

A waterwheel has a radius of 5 feet. The center of the wheel is 2 feet above the waterline. You notice a white mark at the top o

f the wheel. How many radians would the wheel have to rotate for the white mark to be 3 feet below the waterline?
Mathematics
1 answer:
meriva3 years ago
8 0

Answer:c

Step-by-step explanation:

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Find the exact value of tan 270º in simplest form with a rational denominator.
I am Lyosha [343]

Answer:

the tangent of 270 is undefined

Step-by-step explanation:

Tan is sin/cos

270 is at (0,-1), so the cos is 0 and sin is -1

tan is -1/0  which is undefined

6 0
2 years ago
A number that is a whole number but not an integer?
Burka [1]

Answer:

-5 is the answer

Hope it will be helpfull....

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2 years ago
A small hair salon in Denver, Colorado, averages about 82 customers on weekdays with a standard deviation of 16. It is safe to a
Natali5045456 [20]

Answer:

There is a 3.44% probability to get a sample average of 93 or more customers if the manager had not offered the discount.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by

Z = \frac{X - \mu}{\sigma}

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem, we have that:

A small hair salon in Denver, Colorado, averages about 82 customers on weekdays with a standard deviation of 16. This means that \mu = 82, \sigma = 16

She reports that her strategy has worked since the sample mean of customers during this 7 weekday period jumps to 93. What is the probability to get a sample average of 93 or more customers if the manager had not offered the discount?

This is 1 subtracted by the pvalue of Z when X = 93.

We also have to find a standard deviation of the sample(that is, the 7 days), so:

s = \frac{\sigma}{\sqrt(7)} = \frac{16}{\sqrt(7)} = 6.05

Z = \frac{X - \mu}{\sigma}

Z = \frac{93-82}{6.05}

Z = 1.82

Z = 1.82 has a pvalue of 0.9656.

This means that there is a 1-0.9656 = 0.0344 = 3.44% probability to get a sample average of 93 or more customers if the manager had not offered the discount.

6 0
2 years ago
9 4/5 divided by 5 8/11
denis-greek [22]

Answer:

Step-by-step explanation:

392/275 as a fraction

6 0
2 years ago
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What multiplys by 11/2 gets to15/4?<br> please fast helpppppppp
r-ruslan [8.4K]

Answer: 11/2 x 15/4 = 165 /8  = 205 /8 = 20.625


Step-by-step explanation:

Multiple: 11 /2  * 15 /4  = 11 · 15 2 · 4  = 165 /8

Multiply both numerators and denominators.

5 0
2 years ago
Read 2 more answers
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