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Anit [1.1K]
3 years ago
9

What is the exact area of a circle with radius 8 inches?

Mathematics
2 answers:
daser333 [38]3 years ago
7 0

Answer:

200.96 inches^2

Step-by-step explanation:

Area=  pi*radius ^2=pi*8^2=64*pi=64*3.14=200.96 inches^2

motikmotik3 years ago
4 0

Answer:

64pi

Step-by-step explanation:

area of circle is pi•r^2

if r = 8,

area = pi • 8^2

64pi

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Greater than 7 tens and less than 8 tens. The number has 4 ones
prohojiy [21]
Answer is 74. Greater than 70 less than 80 so some where in the 70s. It has 4 ones so it would be 74.
6 0
3 years ago
11. How many different ways can the 16 numbered pool balls be placed in a line on the pool table?
nikklg [1K]

Answer:

The number of ways are 16! or 20,922,789,888,000.

Step-by-step explanation:

Consider the provided information.

We need to determine the number of different ways 16 numbered pool balls be placed in a line on the pool table.

For the first place we have 16 balls.

For the second place we have 15 balls left.

Similarly for the third place we have 14 balls as two balls are already arranged and so on.

Or we can say that this is the permutation of 16 things taking 16 at a time.

Thus the number of ways are: 16! or  ^{16}P_{16}

16!=16\times15\times14\times13......\times2\times1=20,922,789,888,000

Hence, the number of ways are 16! or 20,922,789,888,000.

7 0
3 years ago
Suppose you carry out a significance test of h0: μ = 8 versus ha: μ > 8 based on sample size n = 25 and obtain t = 2. 15. Fin
OLEGan [10]

Using a t-distribution calculator and finding the p-value, the correct option regarding the conclusion is given by:

a) the p-value is 0.02. We reject h0 at the 5% significance level because the p-value 0.02 is less than 0.05.

<h3>What is the relation between the p-value and the conclusion?</h3>

It also involves the significance level, as follows.

  • If the p-value is less than the significance level, we reject the null hypothesis h_0.
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In this problem, a t-distribution calculator for a right-tailed  with <em>t = 2.15 and 25 - 1 = 24 df</em> is used to find a p-value of 0.02.

It is less than 0.05, hence option a is correct.

More can be learned about p-values at brainly.com/question/26454209

5 0
3 years ago
X^2+y^2-4x+2y=b <br>what is b?
Zina [86]
First of all youre not going to get a direct answer to all of these questions, youre going to have 3 finally equations(because thats the amount of variables you have).
8 0
4 years ago
1/8 + c = 4/5 <br><br>what is c
ASHA 777 [7]

Answer:

27/40

Step-by-step explanation:

7 0
3 years ago
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