Find the equation of the parabola corresponding to the given information.The parabola has focus and directrix as shown.

A. x = y2
B. x = - y2
C. x = - y2
D. y = x2

Answer: A

Mathematics

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Remove the parentheses and then solve the equation.6b + 2(b + 4) = 56

What will be an ideal response?

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Express the given quantity in terms of sin x or cos x.cos 

A. -sin x B. sin x C. sin (-x) D. cos x + sin x

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Mathematics

Solve the problem. Assume that all pizzas are circular in shape and that the measurement given in the table is the diameter of the pizza in inches. Use 3.14 as the approximate value of ?. Use the table below to find the cost per square inch for each size of cheese pizza. Round your answers to the nearest thousandth. Which size is the best buy?Cheese$4.40$8.30$10.90Veggie$5.30$9.20$12.60Pesto$5.80$10.30$13.90

A.

Small ? $0.029
Medium   ? $0.018
Large     ? $0.014
Best buy: large
B.
Small ? $8.742
Medium   ? $13.619
Large     ? $18.437
Best buy: small 
C.
Small ? $0.200
Medium   ? $0.220
Large     ? $0.217
Best buy: small
D.
Small ? $0.114
Medium   ? $0.073
Large     ? $0.054
Best buy: large

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Mathematics

Use the graph shown to answer the question.A, B, F, I, K, E, G, L, J, H, D, C is a Hamilton path.

A. False B. True

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Mathematics