It's C because you multiply the beats per second by 60 to find the minutes since there are 60 seconds in a minute.
H = 7
l = w + 6
V = 280
V = lwh
Plug in what we know:
280 = (w + 6)(w)(7)
Distribute W into the first parenthesis:
280 = (w^2 + 6w)(7)
Distribute 7:
280 = 7w^2 + 42w
Divide 7 to both sides:
40 = w^2 + 6w
Subtract 40 to both sides:
w^2 + 6w - 40 = 0
Factor:
(w - 4)(w + 10) = 0
Therefore, w = 4.
Plug this back into the equation for the length:
l = w + 6
l = 4 + 6
l = 10
Answer:
x^4 - 256
Step-by-step explanation:
We learn that: a^2 + b^2 = (a+b) * (a-b) so in this case:
(x² + 16)(x² - 16)
= (x^2)^2 - 16^2
= x^4 - 256
Hope this helped :3
8 5/8 or 8.625; have a good one
The correct answer is D. An Entrepreneur.
I hope this helps. :)
And have a great day.