Find the equation in standard form of the parabola described.The vertex has coordinates (6, 4), and the focus has coordinates (2, 4).
A. (x - 4)2 = -8(y - 4)
B. (x - 4)2 = 8(y - 4)
C. (y - 4)2 = -16(x - 6)
D. (y - 4)2 = 16(x - 6)
Answer: C
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Integrate the function f over the given region.f(x, y) = 
+ 
over the trapezoidal region bounded by the x-axis, y-axis, line 
and line 
A. 30 B. 18 C. 46 D. 22
First use front-end rounding to write an estimate of the answer, and then multiply fully to obtain an exact answer.EstimateProblem
?
A. Estimate: 4.8, exact: 5.104136 B. Estimate: 480, exact: 5,104.136 C. Estimate: 48, exact: 51.04136 D. Estimate: 480, exact: 510.4136
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.[-5, -4] 
A. decreasing B. constant C. increasing
Find the standard deviation of the probability density function to the nearest hundredth.f(x) = 1 - 
; [1, 4]
A. 0.73 B. 0.76 C. 0.75 D. 0.71