When you divide something by 3/4, there's no way something can decrease, unless the number is a fraction below 3/4.
Since in Step 2, they divided 27 by 3/4, but ended up with 20 1/4, that means that they got step 2 wrong, because 27 / (3/4) is equal to 27 * 4/3 = 36
(This is because dividing by a fraction is the same thing as multiplying by the reciprocal of the fraction.)
So therefore they got Step 2 wrong.
Answer:
The correct option is:
A. We are 95% confident that the interval from 55.4 seconds to 61.2 seconds actually does contain the true value of μ.
Explanation:
In statistics, confidence interval is the interval estimate about the population parameter of interest at certain level of confidence like 95%. A 95% confidence interval gives us a range of values that we can be 95% confident contains the true mean of the population.
Therefore, the option A is correct
F(3): 6-3(3)=6-9=-3
f(-3): 6-3(-3)=6-(-9)=6+9=15
-3+15=12
Answer:
-9 -72r
Step-by-step explanation:
-9 times 2 is -9
-9 times 8r is -72r
The equation of a circle with center (h,k) and radius r is
convert it to that form by comleting the square for the x and y terms
or, we can just expand what we know
expand
and make it equal to 0
so expanding we get
minus m^2 from both sides
arranging in decreasing power order with m² at the end
that is option A
answer is A
