Solve. Express the answer in scientific notation to two decimals unless requested otherwise.If the speed of light is 3.00 × 108 m/sec, how long does it take light to travel 2.29 × 1011 m, the distance from the sun to Mars? Round to one decimal place.
A. 7.6 × 103 sec
B. 76 sec
C. 7.6 × 102 sec
D. 7.6 × 102 min
Answer: C
Mathematics
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Write one or more inequalities that describe the set of points.The half-space consisting of the points on and in front of the yz-plane
A. y ? 0, z ? 0 B. x ? 0 C. y ? 0, z ? 0 D. x ? 0
Mathematics
Solve the equation.Solve 2 tan ? - 4 = 9 for ?, where ? is an acute angle. Approximate ? to the nearest tenth of a degree.
A. 81.3° B. 84.8° C. 42.8° D. 68.2°
Mathematics
Find the distance d(P1, P2) between the points P1and P2.P1 = (0, 0); P2 = (-9, 5)
A. 106
B. 
C. -4
D. 
Mathematics
Find an equation of the tangent line to the curve 
at the point (1, ?).
Mathematics