Identify the type of graph.-5x2 + 30x + 5y2 - 70y - 45 = -245
A. The graph is a circle with center (3, 7).
B. The graph is a hyperbola opening upward and downward.
C. The equation has no graph.
D. The graph is the point (3, 7).
Answer: D
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Solve the problem.The seamstress has a length of 15 feet of material on a bolt. She plans to use the material to make scarves. If each scarf requires a length of 7
inches, how many can be made? (1 foot = 12 inches)
A. 25 scarves B. 135 scarves C. 2 scarves D. 24 scarves
Solve the problem.A caterer uses special stacking ovens to prepare large amounts of food. Find the total number of servings that can be prepared in one hour.Meatloaf: 10 servings per panNumber of pans per oven: 2Pan changes per hour: 2Number of ovens: 4
A. 80 servings B. 40 servings C. 160 servings D. 110 servings
Divide. The answer contains fractions.
A. x3 - 
x - 
B. x3 - 10x + 
C. x3 - 
x
D. x3 + 
x
Solve the problem.One hundred dollars is deposited in a savings account at 6% interest compounded continuously. The function defined by f(x) shown in the figure gives the balance in the account after t years. At what rate (in dollars per year) is the balance growing after 27 years?
A. ? $28/year B. ? $14/year C. ? $8/year D. ? $7/year