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Leviafan [203]
3 years ago
15

Find the volume of the sphere with 3ft

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0

Answer:

Step-by-step explanation:

V=4/3πr^3

V=1.333×3.14×27ft

V=113.04ft

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Kim spent $33 on a magazine and
loris [4]

Answer:

Seven candy bars.

Explanation:

Suppose the number of candy bars purchased is x

The questions say he bought A magazine, means one magazine

the equation is:

4x + 5 = 33

4x = 33 – 5

4x = 28

x = 7

Kim bought 7 candy bars.

Hope this helps! :)

5 0
2 years ago
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It costs more to produce defective items - since they must be scrapped or reworked - than it does to produce non-defective items
Shtirlitz [24]

Answer:

1,082

Step-by-step explanation:

The sample size n in Simple Random Sampling is given by

\bf n=\frac{z^2s^2}{e^2}

where  

z = 1.645 is the critical value for a 90% confidence level (*)

s = 2 is the estimated population standard deviation

e = 0.1 mm points is the margin of error

so  

\bf n=\frac{z^2s^2}{e^2}=\frac{(1.645)^2(2)^2}{(0.1)^2}=1,082.22\approx 1,083

rounded up to the nearest integer.

So the manufacturer should test 1,083 parts.

---------------------------------------------------------------------------------------

(*)This is a point z such that the area under the Normal curve N(0,1) outside the interval [-z, z] equals 10% = 0.1

It can be obtained in Excel with

NORMINV(1-0.05,0,1)

and in OpenOffice Calc with

NORMINV(1-0.05;0;1)

5 0
3 years ago
Someone pelase help ASAPPPPPP
Natasha_Volkova [10]

Answer:

the first one

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please help fast. <br> Answer the question below:
LenKa [72]
Either SSS or not possible

Mark if correct!
8 0
2 years ago
Two blocks of ice are shaped as right rectangular prisms. The smaller block of ice has a length of 6 in., a width of 4 in., and
ElenaW [278]
The answer is 6480.
Length: 6x3=18
Width: 4x3=12
Height:10x3=30
LengthxWidthxHeight=18x12x30=6480
5 0
3 years ago
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