Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.If the speed of light is 3.00 × 108m/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
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Translate the statement into a mathematical equation.8 times a number added to 2 times the number equals 19.
A. 8x(2 + x) = 19 B. 8x + 2x = 19 C. 8(x + 2) = 19x D. 8x - 2x = 19
Solve the problem.A rectangular garden has dimensions of 25 feet by 16 feet. A gravel path of equal width is to be built around the garden. How wide can the path be if there is enough gravel for 636 square feet?
A. 8 ft B. 8.5 ft C. 6 ft D. 7 ft
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100
Test the equation for symmetry with respect to the given axis, line, or pole.r = 2 - 4 sin ?; the polar axis
A. May or may not be symmetric with respect to the polar axis B. Symmetric with respect to the polar axis