Especially in fractions, equivalent fractions allows you to easily compare and calculate (add/subtract) fractions with different denominators.
We have this function here:

We can differentiate this function using the power rule:

We will subtract the power/exponent by 1 and multiply the original exponent to the constant in front.

The differentiated function is shown above.
7. Answer: +4, x ≥ 16
<u>Step-by-step explanation:</u>
x - 4 ≥ 12
Add 4 to both sides (to isolate the variable):
x - 4 <u>+ 4</u> ≥ 12 <u>+ 4</u>
x ≥ 16
Graph has a closed dot with an arrow pointing to the right of 16.
16 ·------------→
9. Answer: x ≤ 9
<u>Step-by-step explanation:</u>
x - 20 ≤ -11
Add 20 to both sides of the equation:
x -20 +20 ≤ -11 +20
x ≤ 9
Graph has a closed dot with an arrow pointing to the left of 9.
←----------· 9
The probability is 0.2177.
The z-score associated with this income is
z = (525-490)/45 = 0.78
Using a z-table (http://www.z-table.com) we see that the area to the left of this score, less than the score, is 0.7823. We want the probability greater than this score, so we subtract from 1:
1 - 0.7823 = 0.2177.
Answer:
count all the boxes it covers(that is your area)
answer : 27
Step-by-step explanation: