Perform the indicated operation.9 tons 400 lb ÷ 4
A. 2 tons 100 lb
B. 3 tons 100 lb
C. 2 tons 101 lb
D. 2 tons 600 lb
Answer: D
Mathematics
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Find the center of mass of a thin plate covering the given region with the given density function.The region bounded by the parabola y = 4 - x2 and the x-axis, with density ?(x) = 2x2
A. 
= 0, 
= 
B. 
= 
, 
= 0
C. 
= 0, 
= 
D. 
= 0, 
= 
Mathematics
Use a calculator to find the approximate value of the expression rounded to two decimal places.tan 50°
A. 1.33 B. -0.13 C. 1.19 D. -0.27
Mathematics
Provide an appropriate response.There are 2.911 × 104 miles of highways, roads, and streets in a certain state. Write 2.911 × 104 in standard form.
A. 2911 B. 2,911,000 C. 29,110 D. 291,100
Mathematics
Find the product.(3x + 8)2
A. 3x2 + 48x + 47 B. 9x2 + 64x + 48 C. 3x2 + 47x + 64 D. 9x2 + 48x + 64
Mathematics