Estimate the product by first rounding each number so that there is one nonzero digit.4.7 × 4.81
A. 16
B. 1.6
C. 25
D. 2.5
Answer: C
Mathematics
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Solve the differential equation.cos x 
+ y sin x = sin x cos x
A. y = cos x ln 
+ C cos x
B. y = cos x ln 
+ C cos x
C. y = cot x + C cos x
D. y = sin x ln 
+ C sin x
Mathematics
Solve the equation.
= -6
A. 
B. ?
C. {180}
D. 
Mathematics
Approximate the square root. Round to the nearest tenth, if needed.
A. 26.3 B. 26.5 C. 26.6 D. 26.4
Mathematics
Solve the problem. If necessary, round your result to the nearest tenth unless instructed differently. The precise value of your approximation may depend on the conversion path that you choose.Runners in a 10 km race run how many miles?
A. 10.6 mi B. 6.3 mi C. 16.1 mi D. 5.0 mi
Mathematics