Write the expression in the standard form a + bi.8(8 - 8i)
A. 64i - 8i
B. 64 + 64i
C. 64 - 64i
D. 8 - 64i
Answer: C
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Solve the problem. Assume projectile is ideal, launch angle is measured from the horizontal, and launch is over a horizontal surface, unless stated otherwise.Derive the equations x = x0 + (v0 cos ?)t, y = y0 + (v0 sin ?)t - 
gt2by solving the following initial value problem for a vector r in the plane. Differential equation: 
= -gj Initial conditions: r(0) = x0i + y0j 
(0) = v0 cos ?)i + (v0 sin ?)j
What will be an ideal response?
Find the slope and the y-intercept.y = 5x
A. m = 5; b = 0
B. m = 0; b = 5
C. m = -5; b = 0
D. m = 
; b = 0
Solve the problem.An airplane is sighted at the same time by two ground observers who are 5 miles apart and both directly west of the airplane. They report the angles of elevation as 13° and 
How high is the airplane?
A. 1.87 mi B. 1.12 mi C. 2.69 mi D. 4.49 mi
Decide whether the pair of lines is parallel, perpendicular, or neither.9x + 3y = 1224x + 8y = 33
A. parallel B. perpendicular C. neither