Perform the operation in expanded notation. Write answer in simplified form.53 - 33
A. 550
B. 40
C. 20
D. 30
Answer: C
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Multiply.(x + 10)(x2 + 8x - 6)
A. x4 + 10x3 + 8x2 + 74x - 60 B. x3 + 18x2 + 86x - 60 C. x3 + 18x2 + 74x - 60 D. x3 + 18x2 + 86x + 60
Multiply by 1, 2, 3, and so on, to find ten multiples of the number.28
A. 28, 56, 84, 112, 140, 168, 196, 224, 252, 280 B. 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 C. 28, 38, 48, 58, 68, 78, 88, 98, 108, 118 D. 28, 30, 33, 37, 42, 48, 55, 63, 72, 82
Perform the indicated operation and simplify. Write the answer in the form a + bi.(11 - 8i) - (1 + 2i)
A. 12 - 10i B. 10 - 6i C. -12 - 10i D. 10 - 10i
Solve the problem.A foul tip of a baseball is hit straight upward from a height of 4 feet with an initial velocity of 
per second. The function 
+ 4 describes the ball's height above the ground, s(t), in feet, t seconds after it was hit. The ball reaches its maximum height above the ground when the instantaneous speed reaches zero. After how many seconds does the ball reach its maximum height?
A. 
B. 112
C. 
D. 7