Solve the problem.The speed of sound is approximately 1089 feet per second in a particular medium. Calculate this speed in miles per hour. Round to the nearest tenth.
A. 732.5 mi./hr.
B. 742.5 mi./hr.
C. 12.4 mi./hr.
D. 745.5 mi./hr.
Answer: B
Mathematics
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An empty lot is 1,500 ft by 11,200 ft. How many feet would you save by walking diagonally across the lot instead of walking the length and width? ? __________ ft
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the product and write the result in standard form.(-3 + i)(-3 - i)
A. -3 B. -8 C. 10 D. 9
Mathematics
Simplify.
A. 3
B. 441
C. 7
D. 21
Mathematics
Solve the problem.Given that P(A) = 0.35, P(B) = 0.46, and P(A ? B) = 0.59, find P(A ? B).
A. 0.161 B. 0.37 C. 0.22 D. 0.81
Mathematics