Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find cos (? - ?).
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Plot the graph of the data along with the regression line for the following table of values. x1.443.174.196.78 y6.328.8313.1416.33
What will be an ideal response?
Mathematics
Solve the problem.The side of an equilateral triangle is 3 inches shorter than the side of a square. The perimeter of the square is 28 inches more than the perimeter of the triangle. Find the length of a side of the square.
A. 20 inches B. 18 inches C. 16 inches D. 19 inches
Mathematics
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(4t)i + 3ln(t - 7)j - 
k
A. v(0) = 
j
B. v(0) = -4i - 
j
C. v(0) = 4i - 
j
D. v(0) = -
j
Mathematics
Choose the graph that matches the equation. y = -2x
A. 
B. 
C. 
D. 
Mathematics