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Burka [1]
2 years ago
14

Use the net as an aid to compute the surface area (rounded to the nearest integer) of the triangular pyramid with an equilateral

triangle base. A) 106 ft2 B) 114 ft2 C) 122 ft2 D) 130 ft2
Mathematics
2 answers:
ValentinkaMS [17]2 years ago
4 0

Answer:

does someone know the answer ????????????

Step-by-step explanation:

Paladinen [302]2 years ago
3 0

Answer:

106 ft 2

Step-by-step explanation:

i just did it on usa test prep

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What is the value of 2 thirds + 3 fourths<br>​
inn [45]

Step-by-step explanation:

⅔ + ¾

→ make the denominator equal of both the fraction

= 2/3 × 4/4 = 8/12

= 3/4 × 3/3 = 9/12

hence,

8/12 + 9/12

= 8 + 9/12 = 17/12

\frac{17}{12} or \:  1  \frac{5}{12}

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3 0
2 years ago
Identify the independent and dependent variables in the following situation: The more hours Beth studies, the higher the GPA she
grandymaker [24]
Hours and studying: independent
GPA: dependent
5 0
3 years ago
Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc
Bingel [31]

Answer:

We need a sample size of at least 719

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How large a sample size is required to vary population mean within 0.30 seat of the sample mean with 95% confidence interval?

This is at least n, in which n is found when M = 0.3, \sigma = 4.103. So

M = z*\frac{\sigma}{\sqrt{n}}

0.3 = 1.96*\frac{4.103}{\sqrt{n}}

0.3\sqrt{n} = 1.96*4.103

\sqrt{n} = \frac{1.96*4.103}{0.3}

(\sqrt{n})^{2} = (\frac{1.96*4.103}{0.3})^{2}

n = 718.57

Rouding up

We need a sample size of at least 719

6 0
2 years ago
Blake is signing a lease for a studio apartment that rents for $425/month. How much will Blake pay to move in if he must pay the
jeka57 [31]

Answer:

  (c)  $1062.50

Step-by-step explanation:

The total of the rental and security deposits amounts to two and a half months' rent:

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It will cost Blake $1062.50 to move in.

8 0
2 years ago
Find the circumference of the circle below!
Alchen [17]

Answer: 113.1in

The formula of finding the circumference is 2πr.

That being said, the radius is 18in.

Pi (π) is 3.14.

With all of that being said, we can multiply now.

2 × 3.14 × 18 = 113.09734 = 113.1

Hence 113.1 is the answer.

4 0
3 years ago
Read 2 more answers
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