A certain colony of bacteria triples in length every 10 minutes, its length is now 1 millimeter. How long will it be in 40 minut
1 answer:
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<u><em>Answer:</em></u>
1- The constant of variation is
2- The constant of variation is
<u><em>Explanation:</em></u>
When two variables are in direct variation, this means that when one of them increases, the other increases and vice versa
<u>A direct variation relation is represented as follows:</u>
y = kx
where k is the constant of variation
Now, to get the constant of variation, all we have to do is substitute with the given x and y variables and solve for k
<u>For the given problems:</u>
<u>1- </u>
<u>Therefore:</u>
<u>2- </u>
<u>Therefore:</u>
Hope this helps :)
Answer:
C. (n₁ + n₂ - 2) degrees of freedom
Step-by-step explanation:
The t-test for difference between two mean when variance are equal is:
where ,
= Mean of Sample 1
= Mean of Sample 2
s = standard deviation
n_1 = size of Sample 1
n_2 = size of Sample 2
and t is Student's t-test with (n₁ + n₂ - 2) degrees of freedom.