Fill in the blank with one of the words or phrases listed below.
Together, positive and negative numbers, and 0 are called 
numbers.
A. signed
B. positive
C. absolute value
D. negative
Answer: A
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Write expanded notation.1672
A. 2 thousands + 7 hundreds + 6 tens + 1 ones B. 1 hundreds + 7 tens + 6 ones C. 1 thousands + 6 hundreds + 7 tens + 2 ones D. 1672 thousands
Solve the given equation for x.y = cos (x + 12)
A. x = cos-1 y + 12 B. x = cos-1 (y - 12) C. x = cos-1 (y + 12) D. x = cos-1 y - 12
Write the equation of the ellipse that has its center at the origin, focus at 
, and major axis equal to 14. Express the equation in standard form.
What will be an ideal response?
Solve the problem.An arrow is shot straight up from level ground. The distance (in meters) of the arrow above the ground (the position function) is f(t) = 4 + 124t - 4.9t2 at any time t (in sec). Find f '(2) and the initial velocity of the arrow.
A. f '(2) = 104.4; initial velocity = 124 m/s B. f '(2) = -19.6; initial velocity = 124 m/s C. f '(2) = 104.4; initial velocity = 4 m/s D. f '(2) = 212.8; initial velocity = 124 m/s