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crimeas [40]
3 years ago
11

Answer part A and part B

Mathematics
1 answer:
vredina [299]3 years ago
5 0

Answer: Part A: a square pyramid Part B: 84 square feet

Step-by-step explanation:

Part A: The shape will have a base that is a square with triangles on each of its edges that connect at a point at the top.

Part B: The amount of nylon needed is the surface area of the net. There is a square and two triangles. The square has a side length of 6 so its area will be 6*6=36 square feet. Each triangle has a base of 6 and a height of 4 so each of their areas will be \frac{6*4}{2}=12 square feet. Adding up the area of the 4 triangles and the square gives us 4*12+36=84 square feet.

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In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older
earnstyle [38]

Answer:

Step-by-step explanation:

In the past, mean of age of employees

i.e. \mu = 40

Recently sample was taken

n = sample size = 60

Mean of sample = 45

Std dev of sample s = 16

H_0: \bar x = 40\\H_a: \bar x >40

(Right tailed test)

Since only population std deviation is known we can use t test only

Std error = \frac{s}{\sqrt{n} } \\=\frac{16}{\sqrt{61} } \\=2.049

Mean difference = 45-40 =5

Test statistic t=\frac{5}{2.049} \\=2.441

df = 60

p value =0.008739

Since p < 0.05 we reject null hypothesis

The mean age has increased.

5 0
3 years ago
Line p passes through A(-2, -4) and has a slope of - 1/2
Alenkasestr [34]
M = -1/2
(x₁, y₁) = (-2,-4)

Find the equation
y - y₁ = m(x - x₁)
y - (-4) = -1/2 (x - (-2))
y + 4 = -1/2 (x + 2)
2(y + 4) = -1 (x + 2)
2y + 8 = -x - 2
x + 2y = -10
8 0
3 years ago
Round <br> 0.655<br> to one decimal place.
Virty [35]

Answer:

0.7

Step-by-step explanation:

If we're rounding to one decimal place, we need to round up since it's 0.65.

8 0
3 years ago
Read 2 more answers
64 ounces in 8 cups unit rate
Veseljchak [2.6K]
So the unit rate is basically how many ounces in 1 cup?

So since there are 64 ounces in 8 cups, you can just divide by 8, to find how many sets of 8 there are in 64.

64 = 8

64 / 8 = 8 / 8

8 = 1

So there are 8 ounces in 1 cup, which is your unit rate.
7 0
2 years ago
10% of what number is 14?
alexdok [17]
140
10% is equal to 0.1

0.1 * 140 = 14

So the answer should be 140 as 10 percent of 140 is 14. 
6 0
2 years ago
Read 2 more answers
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