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Sunny_sXe [5.5K]
3 years ago
13

Erik states that the two cones below have the same volume because of Cavalieri’s principle. 2 cones are shown. The first cone ha

s a radius of r, a slant length of c, and a height of b. The second cone has a radius of r, a height of a, and a slant length of b. Is Erik’s statement correct? Why or why not? Yes, the solids are both cones and appear to have the same volumes. Yes, the area of the bases and the heights of the cones are the same, so the volumes are equal. No, the heights of the cones are not the same, so Cavalieri’s principle does not apply.
Mathematics
2 answers:
castortr0y [4]3 years ago
8 0

Answer:

D. No, the heights of the cones are not the same, so Cavalieri’s principle does not apply.

Step-by-step explanation:

Correct on Edge.

GREYUIT [131]3 years ago
5 0

Answer:

The person above me is correct but the option is C.

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/viewform?hr submission=Chclk4feKBIQ.
Gennadij [26K]

Answer:

c) .22

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.

In this question:

\sigma = 2.5, n = 500

Then

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

M = 1.96*\frac{2.5}{\sqrt{500}}

M = 0.22

5 0
3 years ago
Select all that apply. Which lines have a slope of -2? Line a line b line c line d
katrin2010 [14]

Do you have a photo of the options?

8 0
3 years ago
Read 2 more answers
Which polynomials are prime? Check all that apply.
insens350 [35]
15x2+10x-9x+7
8x3+20x2+3x+12
11x4+4x2-6x2-16
Hope this helps !!
8 0
3 years ago
Read 2 more answers
On Monday, Anthony invited 2 friends to join his online group. The next day, the friends and Anthony
Luda [366]

Answer:

27!!! I understand it!

Step-by-step explanation:

Monday: 1 , 2 (Anthony and his 2 friends)

They EACH invited two friends!

Tuesday: Anthony: 2 Friend 1: 2 Friend 2: 2

The same!!

Wednesday: A: 2 F1: 2 F2: 2

THE SAME AGAIN!

Thrusday: A: 2 F1: 2 F2: 2

THE SAME AGAIN!!

Friday: A: 2 F1: 2 F2: 2

1 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 27  

Hope it helps!!

Please be kind to mark Brainliest

Thanks!!! ☺

6 0
3 years ago
Factor completely 36x 2 + 60x + 25
sweet [91]
I believe that the answer is 90x+27
7 0
3 years ago
Read 2 more answers
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