2 years ago

PLZ HELP PLZ PLZ PLZ HELP

Mathematics

1 answer:

faust18 [17]2 years ago

5 0

Answer:the diameter is 7

Step-by-step explanation: 21.98 divide by pi is 7 so diameter is 7

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Given the function f(x)=2x^3-7x^2-5x+1 find f(-2)

Ksju [112]

Answer:

-33

Step-by-step explanation:

2(-2)^3 -7(-2)^2 -5(-2) +1

-16 -28 +11

= -33

5 0

2 years ago

Please help me I’m not good at this

Pepsi [2]

Multiply the Day with 9

1 x 9 = 9 (True)
2 x 9 = 18
3 x 9 = 27
4 x 9 = 36
5 x 9 = 45
6 x 9 = 54
7 x 9 = 63

63 minutes is your answer

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5 0

3 years ago

Read 2 more answers

Pediatricians work an average of 48 h per week. The standard deviation is 12 hours. What percentage of pediatricians work more t

cricket20 [7]

Answer: 2.28 %

Step-by-step explanation:

Given : Mean : $\mu=\ 48$

Standard deviation : $\sigma= 12$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x = 72

$z=\dfrac{72-48}{12}=2$

The p-value = $P(2$

$1-0.9772498=0.0227502\approx0.0228$

In percent, $0.0228\times100=2.28\%$

Hence, the percentage of pediatricians work more than 72 h per week = 2.28 %

4 0

3 years ago

Find the missing length. The triangles in each pair are similar.

pshichka [43]

Can you please take a picture of the question?

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2 years ago

Samantha received a loan from the bank for $4,500. She plans on paying off the loan in 4 years. At the end of 4 years, Samantha

ollegr [7]

4500 x 4x=900
4x=0.2
x=0.05

7 0

2 years ago