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Alex777 [14]
3 years ago
13

A force of 52 N acts upon a 4 kg block sitting on the ground. Calculate the acceleration of the object.

Mathematics
1 answer:
Ahat [919]3 years ago
5 0

Answer:

13m/s

Step-by-step explanation:

F=ma

a=F/m

=52/4

=13m/s

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"A laboratory tested 73 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with LaTeX: \sigmaσ = 17.4
Scrat [10]

Answer:

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

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 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.

M = 1.96*\frac{17.4}{\sqrt{73}} = 3.99

The lower end of the interval is the sample mean subtracted by M. So it is 230 - 3.99 = 226.01

The upper end of the interval is the sample mean added to M. So it is 230 + 3.99 = 233.99.

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

4 0
3 years ago
2.5 X 10^5 divided by 1.0 X 10^10
bekas [8.4K]

Answer:

0.000025

Step-by-step explanation:

PEMDAS (Exponets first.)

10^5 = 100,000

10^10 = 10,000,000,000

rewrite

2.5 x 100,000 divided by 1.0 x 10,000,000,000

PEMDAS (multiplication next.)

2.5 x (10^5) = 250,000

1.0 x (10^10) = 10,000,000,000

rewrite.

250,000 divided by 10,000,000,000 = 0.000025

0.000025

6 0
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Margarita [4]

Answer:

The photo above show you how to graph it.

The equation is y=2x-3

Step-by-step explanation:

Hope this helped

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50 m decreased by 10%
Usimov [2.4K]

Answer:

45 meters

Step-by-step explanation:

because 10% of 50 is 5, you subtract 5 from 50;

50-5=45

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3 years ago
If TRAPis an isosceles trapezoid, what is the value of x?
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Answer:

C ..................................

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