Use identities to simplify the expression.
A. -cos x
B. cos x
C. sin x
D. -sin x
Answer: A
Mathematics
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Solve the problem.The mathematical model C = 700x + 40,000 represents the cost in dollars a company has in manufacturing x items during a month. How many items were produced if costs reached $250,000?
A. 243 items B. 414 items C. 249,300 items D. 300 items
Mathematics
Use =, <, or > to write a true statement.|-2.6| 2.6
A. = B. > C. <
Mathematics
Make the indicated conversion within metric units of capacity.390 liters to milliliters
A. 390,000 mL B. 3.9 mL C. 39,000 mL D. 0.39 mL
Mathematics
Write an equation for the parabola.vertex (5, -6), focus (5, 0)
A. 24(y - 6) = (x + 5)2 B. (x - 5)2 = 24(y + 6) C. (y + 6)2 = 24(x - 5) D. y - 6 = 24(x + 5)2
Mathematics