To solve this you have to divide 90 by 10 which would be 9 so
t=9
Hope it helps
It Is around 1.25, I am hoping that this help you.
Answer:
I hope this helpfull.
Step-by-step explanation:
<em>B</em><em>u</em><em>t</em><em> </em><em>i</em><em>f</em><em> </em><em>i</em><em>t</em><em> </em><em>n</em><em>o</em><em>t</em><em>,</em><em>i</em><em>m</em><em> </em><em>s</em><em>o</em><em> </em><em>s</em><em>o</em><em>r</em><em>r</em><em>y</em>
The ACT score was better since the z-score of the ACT is greater than the z-score of the SAT. Then the correct option is B.
<h3>What is a normal distribution?</h3>
It is also called the Gaussian Distribution. It is the most important continuous probability distribution. The curve looks like a bell, so it is also called a bell curve.
The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.
The z-score is given as

In 1985, the average ACT score was 18 with a standard deviation of 6.
Also in 1985, the average SAT score was 500 with a standard deviation of 100.
Dr. Robertson took both tests in 1985 and scored a 26 on the ACT and a 620 on the SAT.
Then the z-score of the ACT will be

Then the z-score of the SAT will be

Then the ACT score was better since the z-score of the ACT is greater than the z-score of the SAT.
More about the normal distribution link is given below.
brainly.com/question/12421652
#SPJ1
The function for the monthly charge for water service would be
F(x) = 32 + 6.53x where x=the number of kilogallons used.