Find the vertex of the parabola.f(x) = -2x2 - 16x - 25
A. (-4, 7)
B. (0, -25)
C. (-4, -7)
D. (4, 7)
Answer: A
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Provide an appropriate response.Solve the following using a system of equations: A board that measures 30 inches is cut into two pieces. The longer piece is twice as long as the shorter piece. What is the length of each piece?
Fill in the blank(s) with the appropriate word(s).
Verify that each equation is an identity.7 csc2? - 3 cot2? = 4 csc2? + 3
What will be an ideal response?
Write the number as a decimal.
A. 0.175 B. 1.75 C. 17.5 D. 0.875
Solve.During a sale, a store sells red-dot items at a 30% discount and yellow-dot items at a 20% discount. A shopper bought red- and yellow-dot items with a combined regular price of $48.00. If the total discount was $12.20, how much did the shopper spend on each kind of item?
A. Red-dot items: $22.00 Yellow-dot items: $26.00 B. Red-dot items: $17.60 Yellow-dot items: $18.20 C. Red-dot items: $26.00 Yellow-dot items: $22.00 D. Red-dot items: $18.20 Yellow-dot items: $17.60