Complete.720 sec = ___ hr
A. 1.2
B. 2
C. 12
D. 0.2
Answer: D
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Use the improved Euler's method to calculate the first three approximations to the given initial value problem. Compare the approximations with the values of the exact solution.y' = 2xy, y(1) = 1, h = 0.1 and h = 0.05
A. 
B. 
C. 
D. 
Give a geometric description of the set of points whose coordinates satisfy the given conditions.(x - 1)2 + (y - 8)2 + (z - 5)2 < 16
A. All points on the lower hemisphere centered at (1, 8, 5) B. All points outside the lower hemisphere centered at (1, 8, 5) C. All points within the lower hemisphere centered at (1, 8, 5) D. No set of points satisfy the given relations.
Factor by grouping.12x2 + 8xy - 15xy - 10y2
A. (4x - 5)(3x + 2) B. (4x + 5y)(3x + 2y) C. (12x - 5y)(x + 2y) D. (4x - 5y)(3x + 2y)
Translate the phrase into a mathematical expression and then find the result.968 students per 22 classrooms
A. 968 ÷ 22; 45 r5 students per classroom B. 968 ? 22; 14 students per classroom C. 968 ? 22; 45 students per classroom D. 968 ÷ 22; 44 students per classroom