Answer: 25x² - 64
<u>Step-by-step explanation:</u>
(5x + 8)(5x - 8)
= 5x(5x - 8) + 8(5x - 8)
= 25x² - 40x + 40x - 64
= 25x² + 0x - 64
= 
NOTE: descending powers means the biggest exponent goes first, then the next biggest exponent, etc.
For example: x⁴ then x³ then x² then x then the number (which is actually x⁰)
Answer:
Concept: Percentage Change
- Original Price: 107
- At a discount of: 62
- Hence 107-62= 45
- Hence B
Answer:
10,881$
Step-by-step explanation:
time = 1 year
amount paid = $1209.90
percent borrowed = 9%
therefore originally borrowed = $1209.90 X 9% X 1 year
Hope is correct
The difference in the proportion of males and the proportion of females that smoke is 0.08
<h3>Missing information </h3>
In a sample of 61 males, 15 smoke, while in a sample of 48 females, 8 smoke.
<h3>How to determine the proportion difference?</h3>
The given parameters are:
Male Female
Sample 61 48
Smokers 15 8
The proportion is calculated using:
p = Smoker/Sample
So, we have:
Male = 15/61 = 0.25
Female = 8/48 = 0.17
The difference is then calculated as:
Difference = 0.25 - 0.17
Evaluate
Difference = 0.08
Hence, the difference in the proportion of males and the proportion of females that smoke is 0.08
Read more about proportion at:
brainly.com/question/16828793
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