Multiply. Write the answer in simplest form.5 × 5
A. 27
B. 10
C. 25
D. 27
Answer: A
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve to the curve
A. ?2
B. ?2
C. 81?
D. 81?2
Solve the problem.During elections at the local union, of the members voted. If there are 72 members, how many voted?
A. 63 members B. 6 members C. 45 members D. 54 members
Solve the problem.A wheel with radius 3 m rolls at 20 rad/s. How fast is a point on the rim of the wheel rising when the point is radians above the horizontal (and rising)? (Round your answer to one decimal place.)
A. 15.0 m/s B. 30.0 m/s C. 60.0 m/s D. 120.0 m/s
Solve the problem.Two bacteria are placed in a petri dish. The population will double every day. The formula for the number of bacteria in the dish on day t is N(t) = 2(2)twhere t is the number of days after the two bacteria are placed in the dish. How many bacteria are in the dish seven days after the two bacteria are placed in the dish?
A. 256 B. 98 C. 28 D. 11