08/16/21
pleaseeeeeeeeeeeeeeeee help
Points P, Q, R, and S are collinear. Point Q is between P and R, R is between Q and S, and PQ≅RS. If PS=21 and PR=18, what is the value of QR?
11/23/20
arithmetic/composition problem
What are the domains (in interval notation) of these two functions:
(f of g) (x) = √(3x-4)
(g of f) (x) = 3√(x+1) -5
**everything in parenthesis is square rooted (sorry it's unclear)
11/23/20
A rectangle with area 288 square inches has a length that is four less than four times the width. Find the length and the width of the rectangle.
I am completely lost. I know that I must use substitution but that's it.
11/22/20
Let i=sqrt-1 and r and w represent real numbers. If (r-4i)(5+3i) = 2+wi then find the value of (r+w)
Let i=sqrt-1 and r and w represent real numbers. If (r-4i)(5+3i) = 2+wi then find the value of (r+w)
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