Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = 
sin 
, s(?2) = 2
A. s = -2 cos 
+ 8.2134
B. s = -2 cos 
+ 4
C. s = 2 cos 
+ 4
D. s = -2 cos 
+ 3.3073
Answer: B
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The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 = 4y
A. 4 sin2 ? = r cos ? B. 4 cos2 ? = r sin ? C. r sin2 ? = 4 cos ? D. r cos2 ? = 4 sin ?
Simplify the expression. Assume that all variables are positive when they appear.(
+ 3)(
- 3)
A. 1
B. 10 - 2
C. 19
D. 7
Solve the problem.The polynomial function H(x) = - 0.001183 x4 + 0.05495 x3 - 0.8523x2 + 9.054 x + 6.748models the age in human years, H(x), of a dog that is x years old, where x ? 1. Using the graph of this function shown below, what is the approximately equivalent dog age for a person who is 60?
A. 8.5 years B. 11 years C. 12.5 years D. 9 years
Write a simplified expression for the following.8 ? 8 ? 8
A. 3 ? 8 B. 81 C. 83 D. 38