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3 years ago

Find acceleration of a cheetah running at 0.5 and sect 21 and second three seconds describe the acceleration of the animal.

Mathematics

1 answer:

xenn [34]3 years ago

4 0

Answer:

Initial velocity (u)=o m/s

Final velocity (v)=27m/s

Time taken to attain velocity is(t)=5m/s

As we know v=u+at

Substitute above values in the given equation

27=0+a(5)

27/5=a

a=5.4 m/s^2

Step-by-step explanation:

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A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtain

slega [8]

Answer: 8359

Step-by-step explanation:

The formula for sample size needed for interval estimate of population proportion :-

$n=p(1-p)(\frac{z_{\alpha/2}}{E})^2$

Given : The significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}}=z_{0.025}=\pm1.96$

Previous estimate of proportion : $p=0.32$

Margin of error : $E=0.01$

Now, the required sample size will be :-

$n=0.32(1-0.32)(\frac{1.96}{0.01})^2=8359.3216\approx8359$

Hence, the required sample size = 8359

5 0

3 years ago

Who wants to watch some henti with me

melomori [17]

Answer:

SOAP TRUSTED YOU!

I THOUGHT I COULD TOO

SO WHY IM BLOODY HELL DOES MAKOROV KNOW YOU!!!

7 0

3 years ago

Mean of four numbers a ,b, c, and d is 8 and mean of seven

Nana76 [90]

Answer:

17 1/3 or 17.33

Step-by-step explanation:

Mean of four numbers a, b, c, and d is 8:

(a + b + c + d)/4 = 8
⇒ a + b + c + d = 32

Mean of seven numbers x, y, z, a, b, c and d is 12:

(x + y + z + a + b + c + d)/7 = 12

Substitute the sum of 4 numbers:

x + y + z + 32 = 7*12
x + y + z = 84 - 32
x + y + z = 52

Mean of x, y and z is:

52/3 = 17 1/3 or 17.33

4 0

3 years ago

(02.03)Figure ABC is reflected about the x-axis to obtain figure A'B'C':

faust18 [17]

Answer:

B.(–2, –7)

Step-by-step explanation:

5 0

4 years ago

The fine schedule for overdue books at the county library is modeled by the values in the table.

Tasya [4]

Answer:

The answer would be B!

Step-by-step explanation:

In the chart if you divide the number of days over due to the cost of the fine, you get 5/2 every time. therefore, if y is the cost in cents and x is the days overdue, you would multiply x5/2 or y=5/2x, so your answer is B (y=5/2x).

hoped this helped :D

3 0

3 years ago

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