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Katen [24]
3 years ago
13

Need help with this last question. 98 points. Please explain how you got the answer. Thank you.

Mathematics
2 answers:
ale4655 [162]3 years ago
6 0

Answer:

The height of the large pyramid is 5m

Step-by-step explanation:

V large pyramid = 125

V small pyramid 27

Vlarge/V small = 125/27

The scale factor with volume is as cubed  so take the cubed root

(125/27) ^ (1/3)  = 5/3

The scale factor is 5/3

Large over small is as 5/3

The height of the small pyramid is 3 m.  I will use proportions putting the large on the top and the small on the bottom.  h is the height of the large pyramide

5         h

----- = ---------

3           3 m

Using cross products

3*5 = 3h

Divide by 3

3*5/3 = 3h/3

5 =h

Mice21 [21]3 years ago
6 0

Answer:

5m

Step-by-step explanation:

2 pyramids are similar so all their dimensions are in the same ratio.

let that ratio be x

vol of smaller pyramid = 1/3*height*width*length

vol of larger pyramid = 1/3*(larger height)*(larger width)*(larger length)

= 1/3*(x*height)*(x*width)*(x*length)

= 1/3*height*width*length*x^3

= vol of smaller pyramid*x^3

substitute in the volume values

125 = 27*x^3

x^3 = 125/27

x = 5/3

height of larger pyramid = x*height of smaller pyramid

= 5/3*3

= 5m


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2 years ago
Given that z is a standard normal random variable, find z for each situation. The area to the right of z is .1314. (Round to two
Mumz [18]

Answer:

P(Z>0.1314) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.1314,0,1,TRUE)"  or the standard normal table

P(Z

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P(Z>0.01) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.01,0,1,TRUE)"  or the standard normal table

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

P(Z>0.1314) = 1-P(Z

We can use the following excel code: "=1-NORM.DIST(0.1314,0,1,TRUE)"  or the standard normal table

P(Z

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6 0
3 years ago
Anyone want to date?? :)
defon
How old are you cuase if you under 14 go do your homework
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3 years ago
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Answer:

Step-by-step explanation:

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Therefore, Rise = -4

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Therefore, Run = 2

Since, slope of a line = \frac{\text{Rise}}{\text{Run}}

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7 0
2 years ago
What is the product of 8 times 5 times 18
Solnce55 [7]
8 x 5 = 40
40 x 18 = 720
Hope this helps!
5 0
3 years ago
Read 2 more answers
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