Answer:
-66x³ + 73x² - 4x
Step-by-step explanation:
First, expand the equation,
6x³ + 10x² - 4x + 63x² - 72x³
Now, we combine all the like terms
-66x³ + 73x² - 4x
Same tho but the answer is 18
-hope this helped-
If it’s a right triangle 1 side is a right angle and if those 2 sides are equal and not right angles then E needs to be a right angle and a right angle is 90 degrees so it’s D
About 1407 sharks would be needed to have a margin of error of 0.25
<h3>What is
margin of error?</h3>
Margin of error is used to determine by what value there is deviation from the real value. Margin of error (E) is given by:

The 90% confidence level have a z score of 1.645. Hence for E = 0.25, standard deviation = 5.7 feet, hence:

About 1407 sharks would be needed to have a margin of error of 0.25
Find out more on margin of error at: brainly.com/question/10218601
The answer is 7.56 because this is 9% of 84.