Answer:
<em>The surface area of square prism = 384 units squared</em>
Step-by-step explanation:
<u><em>Explanation</em></u>:-
<em>Given the square prism side 'a' = 8 units</em>
<em>The surface area of square prism = 2 a² + 4 a h</em>
Given square prism length , width and height also equal identical sides
The surface area of square prism = 2 a² + 4 a h
= 2(8)² + 4 (8)(8)
= 2(64) + 4(64)
= 384 units squared
<u><em>Final answer</em></u>:-
<em>The surface area of square prism = 384 units squared</em>
Answer:
True.
Step-by-step explanation:
Answer:
Hundreds
Step-by-step explanation:
Refer to the underlined numbers:
3427<u>7</u> - 7 is in the ones place
342<u>7</u>7 - The second 7 is in the tens place
34<u>2</u>77 - 2 is in the hundreds place
3<u>4</u>277 - 4 is in the thousands place
<u>3</u>4277 - 3 is in the ten thousands place
Answer:
The null and alternative hypotheses are:


Under the null hypothesis, the test statistic is:

Where:
is the sample mean
is the sample standard deviation
is the sample size

Now, the right tailed t critical value at 0.05 significance level for df = n-1 = 10-1 = 9 is:

Since the t statistic is less than the t critical value at 0.05 significance level, therefore,we fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim that the average phone bill has increased.
Answer:
D
Step-by-step explanation:
(1/7)^(x)=A^(-9x)
(1/7)^(x)=(A^(-9))^x
A^(-9)=1/7
A=(1/7)^9