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Arada [10]
2 years ago
11

Hii can someone help me with this? thanks! :D

Mathematics
2 answers:
uranmaximum [27]2 years ago
7 0

Answer:

Box A:20            Box B:6      Box C:11

Step-by-step explanation:

Leviafan [203]2 years ago
6 0
Box A:20 Box B:6 Box C:11
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Given side lengths 4 units, 8 units, and x units, determine the range in which x must lie in order for a triangle to exist.
kvasek [131]

Answer:

C) 4 < x < 12

5 0
2 years ago
A light bulb consumes 1440 watt hours per day. How many watt hours does it consume in 3 days and 12 hours?
Mama L [17]

Answer:

5040 watts i think

Step-by-step explanation:

1440 X 3  = 4320        24 / 12 = 2

1440 /  2 = 720

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5 0
3 years ago
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4 0
3 years ago
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Are the expressions below<br> equivalent?<br> 3(4x + 8)<br> 12x + 24
pantera1 [17]

Answer:

they are both equal 12x+8 is equal to 12x+24

Step-by-step explanation:

distribute:

3 x 4x = 12x      3 x 4 = 24

3 0
3 years ago
The standard deviation of a sample taken from population A is 17.6 for a sample of 25.
lawyer [7]

Answer:

The standard deviation of the sample mean differences is _5.23_

Step-by-step explanation:

We have a sample of a population A and a sample of a population B.

For the sample of population A, the standard deviation \sigma_A is

\sigma_A = 17.6

The sample size n_A is:

n_A = 25.

For the sample of population B, the standard deviation \sigma_B is

\sigma_B = 21.2

The sample size n_B is:

n_B = 30.

Then the standard deviation for the difference of means has the following form:

\sigma=\sqrt{\frac{\sigma_A^2}{n_A}+\frac{\sigma_B^2}{n_B}}

Finally

\sigma=\sqrt{\frac{17.6^2}{25}+\frac{21.2^2}{30}}\\\\\sigma= 5.23

7 0
3 years ago
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