Complete the trinomial so it is a perfect square.25x2 + 
+ 64
A. 80x
B. 40x
C. 800x
D. 20x
Answer: A
Mathematics
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Find the volume of the indicated region.the region bounded by the paraboloid 
and the xy-plane
A. 20?
B. 80?
C. 
?
D. 200?
Mathematics
Multiply or divide as indicated.(-4) × (-4) × 4
A. -64 B. 54 C. 64 D. 164
Mathematics
Solve the equation.
x = 3
A. {8} B. {15} C. {7} D. {0}
Mathematics
Solve the problem.In the formula N = Iekt, N is the number of items in terms of an initial population I at a given time t and k is a growth constant equal to the percent of growth per unit time. There are currently 66 million cars in a certain country, increasing by 0.7% annually. How many years will it take for this country to have 87 million cars? Round to the nearest year.
A. 39 yr B. 435 yr C. 5 yr D. 30 yr
Mathematics