Answer:
Late response, sorry. It is 750 meters.
Step-by-step explanation:
An easy method to save time is to just divide the distance by time to find what amount per second it can run. In this case, you have 120 and 4 to work with. Divide and you'll get 30 meters per second. Then, multiply 25(your seconds) by 30(the meters it runs per second) to get your answer.
Answer:
<em>An exponential function is a Mathematical function in form f (x) = ax</em><em>.</em>
<em>
</em>
Step-by-step explanation:
<em> where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.</em>
<em>NoTe</em><em>:</em><em> The most commonly used exponential function base is the transcendental number e, which is approximately equal to 2.71828.</em>
<em>if</em><em> </em><em>u</em><em> </em><em>nee</em><em>d</em><em> </em><em>any</em><em> </em><em>hel</em><em>p</em><em>, </em><em>ju</em><em>st</em><em> </em><em>tell</em><em> </em><em>me</em><em> </em><em>kn</em><em>ow</em>
Answer:
We accept H₀ . We don´t have enough evidence to express the publisher claim is not true
Step by Step explanation:
We must evaluate if the mean of the price of college textbooks is different from the value claimed by the publisher
n < 30 then we must use t - distrbution
degree of freedom n - 1 df = 22 - 1 df = 21
As the question mentions " different " that means, a two-tail test
At 0,01 significance level α = 0,01 α/2 = 0,005
and t(c) = 2,831
Test Hypothesis
Null Hypothesis H₀ μ = μ₀
Alternative hypothesis Hₐ μ ≠ μ₀
To calculate t(s)
t(s) = ( μ - μ₀ ) /σ/√n
t(s) = ( 433,50 - 385 ) / 86,92 / √22
t(s) = 2,6171
Comparing t(c) and t(s)
t(s) < t(c)
Then t(s) is in the acceptance region we accept H₀. We don´t have enough evidence to claim that mean price differs from publisher claim
Answer:
yes the answer is 456
Step-by-step explanation:
