Solve.Noise at a construction site has an intensity level of 10-6 watt per square meter. How many decibels is this noise?
A. 6 decibels
B. 60 decibels
C. -60 decibels
D. 600 decibels
Answer: B
Mathematics
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Graph the set of points whose polar coordinates satisfy the given equation or inequality.r = 3
A. 
B. 
C. 
D. 
Mathematics
Find the values of the variables.
= 
A. x = 3, y = 7
B. x = 4, y = -3
C. x = 5, y = 7
D. x = 
, y = 7
Mathematics
Solve the problem.10 people are bowling: 3 use a black ball and 7 use a blue ball. How many different black and blue bowling ball sequences can occur on the rack?
A. 117 B. 120 C. 604,800 D. 125
Mathematics
Find the area of the trapezoid.A park in Canada is laid out in the shape of a trapezoid. The trapezoid has a height of 300 m. The bases are 430 m and 488 m. Find the area of the park.
A. 31,476,000 m2 B. 137,700 m2 C. 275,400 m2 D. 609 m2
Mathematics