Find the length of the curve.x = 3 sin t + 3t, y = 3cos t, 0 ? t ? ?
A. 18
B. 6
C. 12
D. 3?
Answer: C
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Solve.The cruising speed of a prototype jet is approximately Mach 0.92, meaning 0.92 times the speed of sound. If the speed of sound at cruising altitude is approximately 295 m/s, what is the cruising speed of the prototype jet in miles per hour?
A. 607 mph B. 548 mph C. 660 mph D. 580 mph
Using the determinants method, set up the denominator for the following equations: 2x + 3y = 10; 3x + 2y = 4
a. ³3 10³ ³ ³ ³2 4³ b. ³10 3³ ³ ³ ³4 2³ c. ³2 10³ ³ ³ ³3 2³ d. ³2 3³ ³ ³ ³3 2³ e. ³3 3³ ³ ³ ³2 3³
Answer the question.In the given problem 
÷ 
= 
, what must be the polynomial that is represented by the question mark?
A. (y + 3)(y - 3)
B. (y - 3)(y - 3)
C. 
D. 
Find the absolute value of the complex number.-2i
A. 4 B. 2i C. 2 D. -2