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Firdavs [7]
3 years ago
8

Why does the unit of time enter twice in the unit of acceleration?

Mathematics
2 answers:
AfilCa [17]3 years ago
6 0
Because the speed has formula of distance divide time = m/s
and the acceleration is speed /time so (m/s)/s = m/(s*s) = m/s^2

hope this is understandably sure easy for you 
NeTakaya3 years ago
4 0
<span>Because acceleration is acquired through integration of velocity, in which it appears already once. Also, you have to take into account that acceleration measures the variation of speed (m/s, so time is already present), through time (again), which checks that time appears twice.</span>
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Please help ASAP! Thanks a lot
spin [16.1K]
2000 x 1.12^6
= 3947
8 0
2 years ago
Could someone explain how they get the answer for this?
jarptica [38.1K]

Answer:

40°

Step-by-step explanation:

The reference angle is the positive acute angle created by the terminal arm and the x-axis.

The highlighted red in the picture below shows what we're looking for.

The arm rotated 220° (but 'backwards' so the value given is negative).

|-220°| - 2(90°)          <= Subtract two right angles for two quadrants

= 220° - 2(90°)

= 220° - 180°

= 40°

Therefore, the reference angle is 40°.

If you got 50°, you probably calculated the angle with the terminal arm and the y-axis. Remember to always use the nearest side of the x-axis!

4 0
3 years ago
What is the slope of the line on the graph?<br>  <br> Enter your answer in the box.
yulyashka [42]
The slope of this triangle is -2/1
6 0
3 years ago
Read 2 more answers
Britta brought some carrots and apples for $24.80. A carrot and apple cost $0.90 altogether. She brought more carrots than apple
irga5000 [103]
The extra cost of the apples and the carrots is 5 dollors  and 90 cent

7 0
3 years ago
In a clinical test with 2161 subjects, 1214 showed improvement from the treatment. Find the margin of error for the 95% confiden
Vlad [161]

Answer:

The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In a clinical test with 2161 subjects, 1214 showed improvement from the treatment.

This means that n = 2161, \pi = \frac{1214}{2161} = 0.5618

95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Margin of error:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.96\sqrt{\frac{0.5618*0.4382}{2161}}

M = 0.0209

The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.

4 0
3 years ago
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