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pentagon [3]
2 years ago
14

The diameter of a circle is 12 ft. Find its area in terms of t.

Mathematics
1 answer:
Harrizon [31]2 years ago
3 0

Answer:

113.1 ft squared,

Step-by-step explanation:

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Simple 9th grade math
Liono4ka [1.6K]

Answer:

-1078

Step-by-step explanation:

To find the nth term in an arithmetic sequence we use the following formula

aₙ=a₁+(n-1)*d

Where a₁ is the first time, and d is the common difference (in this case -20)

So we have

2+(55-1)*-20

2+(54)*-20

2-1080

-1078

5 0
2 years ago
Of interest is to test the hypothesis that the mean length of all face-to-face meetings and the mean length of all Zoom meetings
Goshia [24]

Answer:

Null hypothesis: \mu_1 = \mu_2 = ..... \mu_j , j =1,2,....,n

Alternative hypothesis: \mu_i \neq \mu_j , i,j =1,2,....,n

The alternative hypothesis for this case is that at least one mean is different from the others.

And the best method for this case is an ANOVA test.

Step-by-step explanation:

For this case we wnat to test if all the mean length of all face-to-face meetings and the mean length of all Zoom meetings are the same. So then the system of hypothesis are:

Null hypothesis: \mu_1 = \mu_2 = ..... \mu_j , j =1,2,....,n

Alternative hypothesis: \mu_i \neq \mu_j , i,j =1,2,....,n

The alternative hypothesis for this case is that at least one mean is different from the others.

And the best method for this case is an ANOVA test.

6 0
3 years ago
The perimeter of the triangle is 131 inches. Write an equation to find the length labeled x. Then solve the equation
Deffense [45]
Write the equation: x + 42 + 30 = 131

Combine like terms: x + 72 = 131

Subtract 72 from both sides: x = 59
3 0
2 years ago
Read 2 more answers
Verify the property: a x ( b + c ) = a x b + a x c by taking a = −5<br> /2,b= 11/8​
soldi70 [24.7K]

Answer:

True

Step-by-step explanation:

a x ( b + c ) = a x b + a x c  Substitute

-5 x ( 11/8 + c ) = -5 x 11/8 + -5 x c

-5 ( c + 11/8) = - 5c - 55/8

- 5c - 55/8 = - 5c - 55/8

True

4 0
3 years ago
...............................
stepladder [879]

Answer:

............................... is not a school related question

5 0
3 years ago
Read 2 more answers
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