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EleoNora [17]
2 years ago
13

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Use the net to find the surface area of the square pyramid

Mathematics
2 answers:
nydimaria [60]2 years ago
5 0

Answer:

333 ft^2

Step-by-step explanation:

Surface area is the sum of all the areas of the shape.

First, the area of the square in the center is simply 9x9 = 81.

The area of a triangle is (bh)/2, where b = base, and h = height

In the triangle, 9 is the base, and 14 is the height:

(9x14)/2 = 63

There are four triangles of the same area:

63 x 4 = 252

252 + 81 = 333

Rudik [331]2 years ago
4 0

Answer:

333ft^2

Step-by-step explanation:

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According to a report from the United States Environmental Protection Agency, burning one gallon of gasoline typically emits abo
Minchanka [31]

Answer:

B. The mean amount of CO_2 emitted by the new fuel is actually lower than 89 kg but they fall to conclude it is lower than 89 kg

Step-by-step explanation:

A Type II error is the failure to reject a false null hypothesis.

Given the null and alternate hypothesis of a fuel company which wants to test a new type of gasoline designed to have lower CO_2 emissions.:

H_0: \mu = 8.9 kg\\H_a: \mu < 8.9 kg \\\text{ (where \mu is the mean amount of CO_2 emitted by burning one gallon of this new gasoline)}

where \mu is the mean amount of CO_2 emitted by burning one gallon of this new gasoline.

If the null hypothesis is false, then:

H_a: \mu < 8.9 kg

A rejection of the alternate hypothesis above will be a Type II error.

Therefore:

The Type II error is: (B) The mean amount of CO_2  emitted by the new fuel is actually lower than 89 kg but they fall to conclude it is lower than 89 kg.

8 0
3 years ago
What is the theoretical probability of picking a diamond, not replacing it, and then picking another diamond? Write your answer
BARSIC [14]
You start with a 1/4 chance of picking a diamond.
you remove it from the deck you now have a 12/51 chance of picking a diamond
1/17 is your answer!



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3 0
3 years ago
John has gross biweekly earnings of $743.61. By claiming 1 more withholding allowance, John would have $19 more in his take home
Afina-wow [57]

Answer:

Total withholding allowances are 39.

Step-by-step explanation:

Given the gross earning of John = $743.61

It is given that 1 withholding allowance = $19

Now we have to find the total number of withholding allowances. Here, the number of withholding allowances can be determined by dividing the total earnings with $19.

Number of withholding allowances = 743.61 / 19 = 39.14 or 39 (round off).

4 0
3 years ago
Find the complete quotient when P(x) is divided by the binomial following it.
Nutka1998 [239]

Answer:

Q(x) = x -11

Explanation:

<em>Please refer to the attached image for the Solution</em>

4 0
2 years ago
Point A is located at negative 5/8 and point B is located at negative 2/8 . What is the distance between points A and B? (1 poin
Alisiya [41]

Answer:

3/8

Step-by-step explanation:

Just subtract 5/8 by 2/8 and you get 3/8

7 0
3 years ago
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