Approximate the area under the graph of f(x) over the specified interval by dividing the interval into the indicated number of subintervals and using the left endpoint of each subinterval.f(x) = 0.1x4 - x2 + 3; interval [0, 4]; 4 subintervals
A. 35.8
B. 17.4
C. 20.4
D. 7.8
Answer: D
Mathematics
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Let 
. If y is multiplied by 4, how is x affected? Round your answer to two decimal places if necessary.
?
A. 1.59 is added to x B. x is multiplied by 64 C. 64 is added to x D. x is multiplied by 1.59
Mathematics
Find the limit of the sequence if it converges; otherwise indicate divergence.an = (-1)n 
A. 9 B. ±9 C. 0 D. Diverges
Mathematics
Solve the problem.Find the equation of the line tangent to the curve 
where x = 1.
A. y = ex - 2e B. y = 4e2x - 3e2 C. y = 3e2x - 2e2 D. y = 4e2x - 4e4 + 1
Mathematics
Simplify. Combine like terms if possible.-9z - (-4z)
A. -5z B. -5z2 C. -13z D. 5z
Mathematics