Solve the equation.(63x)(2x + 1) = 5 (Round to the nearest thousandth.)
A. 0.648
B. 0.369
C. 0.184
D. 0.151
Answer: D
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Use the given graph to find the x-intercepts.
A. -4, 2 B. 4, 2 C. -4, -2 D. -2, 4
Solve.In physics, if an object is in motion it has kinetic energy. The formula 
is used to calculate the kinetic energy, E, of an object with a mass m and velocity v. If the mass is measured in kilograms and the velocity is in meters per second, then the kinetic energy will be in units called joules (J). Suppose an object with a mass of 40 kilograms has 2,000 joules of kinetic energy. Find its velocity. Round to the nearest tenth if necessary.
A. 25 m/sec B. 10 m/sec C. 5 m/sec D. 100 m/sec
Divide the monomials.
A. 18k2 B. 18 C. 4k D. 4k2
Solve and, when appropriate, round the answer to the nearest tenth.The radius of a sphere depends on its surface area, S, and is given by the formula r = 
.What is the surface area of a sphere with radius of 6.7 inches?Use 3.14 for ?.
A. 21 square inches B. 563.8 square inches C. 141 square inches D. 84.2 square inches