Solve the given applied problem.A rectangle has area A m2 with A = w(9 - w), where w is the width of the rectangle and the perimeter is 18m. Sketch the graph of A as a function of w.

A.

B.

C.

D.


Answer: D

Mathematics

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Factor the trinomial, or state that the trinomial is prime. Check your factorization using FOIL multiplication.10x2 + 21x + 9

A. (10x + 3)(x + 3) B. (2x + 3)(5x + 3) C. (2x - 3)(5x - 3) D. prime

Mathematics

Solve the problem.A 29-inch-square TV is on sale at the local electronics store. If 29 inches is the measure of the diagonal of the screen, use the Pythagorean theorem to find the length of the side of the screen.

A.  in.
B.  in.
C.  in.
D.  in.

Mathematics

Establish the identity.ln = ln

What will be an ideal response?

Mathematics

Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.y = -5x - 4-10x - 2y = 8

A. ? B. {(0, 0)} C. {(x, y) | 5x + y = -4} D. {(0, -4)}

Mathematics