Write the vector in the form ai + bj. 
A. -3i + 2j
B. 2i - 3j
C. 2i + 3j
D. 3i + 2j
Answer: D
Mathematics
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Find the directrices of the hyperbola.49x2 - 576y2 = 28,224
A. y = ± 
B. x = ± 
C. x = ± 
D. y = ± 
Mathematics
Solve the formula for the indicated variable. Then use the supplied values to solve the equation.The total surface area of a rectangular solid of length L, width W, and height H is given by 
Solve for H. What is the height if the area A is 2768 cm2, the length is 35.5 cm, and the width is 12.9 cm? (All measurements are approximate.)
A. H = 
= 47.7 cm
B. H = 
= 19.1 cm
C. H = A - 2LW - 2L - 2W = 1760 cm
D. H = 
= 1160 cm
Mathematics
Evaluate the integral.
A. 
B. 
C. Diverges
D. 1
Mathematics
Find the slope and the y-intercept.y = 2x + 4
A. m = 4; b = 2
B. m = 2; b = 4
C. m = -2; b = -4
D. m = 
; b = 4
Mathematics