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Allushta [10]
3 years ago
13

Brainielst!! Last 3 questions please!

Mathematics
1 answer:
mariarad [96]3 years ago
5 0
Hello There!

Surface area of a sphere formula:
4πr²
SA = 4π14.21²
SA = 2537.5mm³

Surface area of a cone formula:
1/3πr²5
SA = 1/3π3²15.1
SA = 142.3in³

Pyramid:
SA = 124.3

Hope This Helps You!
Good Luck :) 

- Hannah ❤ 

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Using the distance formula, d = √(x2 - x1)2 + (y2 - y1)2, what is the distance between point (-10, 12) and point (5, 3) rounded
Whitepunk [10]

Answer:

<h3>The answer is 17.5 units</h3>

Step-by-step explanation:

Using the distance formula

<h3>d =  \sqrt{ ({x2 - x1})^{2} +  ({y2 - y1})^{2}  }</h3>

the distance between (-10, 12) and (5, 3) is

<h3>d =  \sqrt{ ({5 + 10})^{2}  +  ({3 - 12})^{2} }</h3><h3>d =  \sqrt{ {15}^{2}  + ( { - 9})^{2} }</h3><h3>d =  \sqrt{225 + 81}</h3><h3>d =  \sqrt{306}</h3><h3>d = 3 \sqrt{34}</h3>

d = 17.492855

We have the final answer as

<h3>d = 17.5 units to the nearest tenth</h3>

Hope this helps you

4 0
3 years ago
Read 2 more answers
Fred borrows $2710 at 3.8% simple interest per month. When Fred pays the loan back 3 months later, what is the total amount that
Fantom [35]

Step-by-step explanation:

Simple interest =P (1+. R )^n

/100

Where P is the amount

R is rate (%)

n is number of years

So if you are given months your divide ➗ the number of months by 12 years

2710 *(1+ [ 3.8/100])^3/12

5 0
3 years ago
I need help plz problem attached, Thanks.
Ivenika [448]
The answer would be -1 14/15
3 0
3 years ago
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Suppose a shipment of 400 components contains 68 defective and 332 non-defective computer components . From the shipment you tak
Alona [7]

Answer:

The standard deviation for the number of defective parts in the sample is 1.88.

Step-by-step explanation:

The sample is with replacement, which means that the trials are independent, and thus, the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.  

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

68 defective out of 400:

This means that p = \frac{68}{400} = 0.17

From the shipment you take a random sample of 25.

This means that n = 25

Standard deviation for the number of defective parts in the sample:

\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{25*0.17*0.83} = 1.88

The standard deviation for the number of defective parts in the sample is 1.88.

6 0
2 years ago
1) 13.111713<br> What is the decimal place
Dafna11 [192]

Answer:

millionths

Step-by-step explanation:

4 0
3 years ago
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