360 because you multiply 8 x 5 x 9
f(x) = x²<span> - 5x + 1
f(-3) = (-3)</span>² - 5(-3) + 1
<span>
f(-3) = 25
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Answer: f(-3) = 25 (Answer C)
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Unit rate is like miles per hour. If John walks 500 miles in 5 hours, the unit rate is 500/5=100 miles per hour.
<span><u><em>Answer:</em></u>
The number is -10.4
<u><em>Explanation:</em></u>
Assume that the number we are looking for is x.
Now, we want to get 10 times te sum of half the number and 6 and equate this expression to 8. Then we can solve for x
<u>Let's take this step by step:</u>
half the number is 0.5x
the sum of half the number and 6 is 0.5x + 6
10 times the sum of half the number and 6 is 10(0.5x +6)
10 times the sum of half the number and 6 equals 8 is 10(0.5x+6) = 8
<u>Now we can solve for x as follows:</u>
10(0.5x + 6) = 8
5x + 60 = 8
5x = 8 - 60
5x = -52
x = -52/5
x = -10.4
Hope this helps :)</span>
Answer:
b.
Step-by-step explanation:
Factor 25p^ 2 -81q^ 2 : (5p + 9q)(5p - 9q)
Steps
25p ^ 2 - 81q ^ 2
=(5p)^ 2 -(9q)^ 2
Apply Difference of Two Squares Formula: x ^ 2 - y ^ 2 = (x + y)(x - y)
(5p) ^ 2 - (9q) ^ 2 = (5p + 9q)(5p - 9q)
=(5p+9q)(5p-9q)
