Answer:
just d
Step-by-step explanation:
Hope this helps!❆
The area of the shaded region is 0.1271 (12.71%).
<h3>What is the
z score?</h3>
Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:
z = (raw score - mean)/standard deviation
Given:
Mean 0 and standard deviation 1. Hence, for z=-1.14:
P(z < -1.14) = 0.1271
The area of the shaded region is 0.1271 (12.71%).
Find out more on z score at: brainly.com/question/25638875
Answer:
17.1 in
Step-by-step explanation:
If a number is 40% more than another number, we can say that the new number is equivalent to the sum of the old number and 40% of the old number. Let's try to represent this as an equation. First, let's convert the percentage to a fraction:

Defining
as the new number and
as the old number, we can say:

Also, we can say:

To solve, let's substitute the first equation into the second equation for
and simplify.


- Get terms over common denominator



We now have found the old number. Using the second equation we found near the beginning, let's find
.


The numbers are 35 and 49.