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sergiy2304 [10]
3 years ago
15

HELP ME PLS

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

A=30

Step-by-step explanation:

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Martin is interested in the effects of different kinds of instruction on videogame performance. Martin asks 30 college freshmen
777dan777 [17]

Answer:

Between - groups variance

Step-by-step explanation:

From the question we see that the college freshmen are assigned to one of the three given groups. This means that they are exposed to different experimental conditions and thus it means that the variation differs as a result of different experimental conditions between the groups.

Thus, these differences reflect between - group variance.

5 0
3 years ago
Each cone of the hourglass has a height of 12 millimeters. The total height of the sand within the top portion of the hourglass
Harman [31]

The solution would be like this for this specific problem:

Volume of a cylinder = pi * r^2 * h 

Volume of a cone = 1/3 * pi * r^2 * h 

Total Height = 47

Height of the cone = 12

Height of the cylinder = 35

If the top half is filled with sand, then:

volume (sand) = pi * 4^2 * 36

volume (cone) =  1/3 * pi * 4^2 * 12

Total volume = 1960.353816 cubic millimeters

353816 / (10 * pi) = 62.4 seconds.

It will take 62.4 seconds until all of the sand has dripped to the bottom of the hourglass.

7 0
3 years ago
. If Gene gets two more strikes (scores of 10), what is his new average? 
dedylja [7]
I think u r sopost to multiply 10 times 2

3 0
3 years ago
Calculate the volume of the sphere
AlexFokin [52]

Answer:

This is the exact 38792.386086527 inches^{3}

hoped this helped.

8 0
3 years ago
Read 2 more answers
Please help me with this problem. I'm stuck!!
mihalych1998 [28]
\bf S(t)=4\pi \left( \cfrac{3}{8}t^4 \right)^2\impliedby \textit{distributing the exponent}
\\\\\\
S(t)=4\pi \left( \cfrac{3^2}{8^2}t^{4\cdot 2} \right)\implies S(t)=4\pi \cdot \cfrac{9t^8}{64}\implies S(t)=\cfrac{4}{64}\cdot \cfrac{9\pi t^8}{1}
\\\\\\
S(t)=\cfrac{1}{16}\cdot \cfrac{9\pi t^8}{1}\implies S(t)=\cfrac{9\pi t^8}{16}
6 0
4 years ago
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