A chemist is using 381 milliliters of a solution of acid and water. If 12.2% of the solution is acid, how many milliliters of ac
1 answer:
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Answer:
y=log_(6)x
Step-by-step explanation:
From the definition of logarithm:
<--->
In our case, we have
which means that b=6, therefore the inverse function is
which can be rewritten by switching x and y:
Answer: 505
Step-by-step explanation:
The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:
, where E= margin of error and z = Critical z-value.
Let p be the population proportion of crashes.
Prior sample size = 250
No. of people experience computer crashes = 75
Prior proportion of crashes
E= 0.04
From z-table , the z-value corresponding to 95% confidence interval = z=1.96
Required sample size will be :
(Substitute all the values in the above formula)
(Rounded to the next integer.)
∴ Required sample size = 505
Answer:
7
Step-by-step explanation:
16x + 22 = 134 ..... because if the two lines are parallel alternative exterior angles are congruent
16x = 134 - 22
16x = 112
x = 7
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