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IgorLugansk [536]
3 years ago
15

PLZZ HURRY

Mathematics
2 answers:
coldgirl [10]3 years ago
8 0

<u>Answer:</u>

The answer is  V=113.04ft ^3 !

<u>Step-by-step explanation:</u>

Formula: V=πr^2h

So all you need to do is multiply 3.14(pi) times the height times the radius squared. To square a number means to multiply the number by itself one time!

<u>Sooo.....</u>

4 (height) x  (3*3)(radius)  x 3.14 (pi)= 113.04

I hope this helps!

p.s. have any more questions? Post the question and comment the link below!

Ciao!

♥, Sadie  

ASHA 777 [7]3 years ago
6 0

Answer:

113.04

Step-by-step explanation:

Volume= 3.14*r^2*h

3.14*3^2*4

113.04

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Based on concerns raised by his preliminary research, the biologist decides to collect and examine 150 frogs.
Delicious77 [7]

Answer:

Answered and explained below

Step-by-step explanation:

A) We are told that frequency of the trait is still 1 in 8. Thus, population proportion; p = 1/8 = 0.125

Sample size; n = 150

Formula for mean is;

μ = np

μ = 150 × 0.125

μ = 18.75

Formula for standard deviation is;

σ = √(np(1 - p))

σ = √(150 × 0.125(1 - 0.125))

σ = √16.40625

σ = 4.05

B) usually, when np ≥ 10 , we make use of normal distribution.

I'm this case, it is 18.75 which is greater than 10.

Thus,we can use a normal model to approximate the distribution.

C) we are told that he found the trait in 22 of the frogs.

Thus;

Proportion is now; 22/150 = 0.1467

This is a higher probability that the initial one of 0.125 and we can say that the trait has become more common.

6 0
3 years ago
What is 20℅ of 350℅ <br>please help
Ad libitum [116K]
What is 20 percent (%) off $350?

Using the formula 1 and replacing the given values:

Amount Saved = Original Price x Discount % / 100. So,
Amount Saved = 350 x 20 / 100 
Amount Saved = 7000 / 100

Amount Saved = $70 (answer)

3 0
3 years ago
How do you do number 9?
katrin [286]
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6 0
3 years ago
Determine the domain and the range of the relation. <br>(-3,1), (4,2), (-3,6), (5,6)​
fgiga [73]

Answer:

Domain (-3, 4, 5)

Range (1, 2, 6)

Step-by-step explanation:

Domain is your x so all of the values that can go into a relation or function (which is your input) are called Domain. Domain is also all of the set of elements of ordered pair ( which is the x coordinates).

Range is your y so all the values that can go into a relation or function ( which is your output) are called Range. Range is also all the set of second elements of ordered pair ( which is the y coordinates).

So, basically you just look at all the number that come first so say you have

(1,2), (2,3), (3,4)

Your first numbers to each point are (1, 2, 3) which is your Domain

then look at the second number which are (2, 3, 4) which is your Range.

Hope this helps!

6 0
4 years ago
Need need need help help help plz
AlekseyPX
The answer is yes because they have the same angles and the same number of sides in their shapes .
4 0
4 years ago
Read 2 more answers
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