Answer:
Step-by-step explanation:
we have the expression:
We need to multiply the two terms in the first parenthesis by the two terms in the second parenthesis:
we solve each term taking into account the law of signs
(-)(-)=+
and
(+)(-)=-
also for the first term we use that
thus we have:
it can be simplified a little more if we factor an r of the second and third term:
Answer:
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Step-by-step explanation:
Answer:
5√3 ft = 8.8 ft (to the nearest tenth foot)
Step-by-step explanation:
The formula for the area of a square is A = s², where s is the length of any one of the sides of the square.
If A = 75 ft² = s²2, then the side length s is s = √75 ft.
Simplified, that comes out to s = (√25)(√3) = 5√3 ft.
To the nearest tenth of a foot, that comes out to s = 5(1.732) = 8.7 ft.
Answer:
i'm not one hundred percent but i think it is c
Step-by-step explanation: