Find the exact value of the indicated trigonometric function for the given right triangle.
cos ?
A. 
B. 
C. 
D. 1
Answer: C
Mathematics
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Add or subtract as indicated.(2 + 5x7 + 9x9 + 4x8) + (2x8 + 3x7 + 6 + 9x9)
A. 4x9 + 4x8 + 15x7 + 13 B. 18x9 + 6x8 + 8x7 + 8 C. 18x18 + 6x16 + 8x14 + 8 D. 32x48 + 8
Mathematics
Solve the problem by writing an appropriate system of equations and using the inverse of the coefficient matrix to solve the system.The sum of three numbers is 13. The first, plus three times the second, plus the third, is 1. Two times the first, minus the second, plus the third, is 15. Which of the numbers are odd numbers?
A. 29 B. 29 and 7 C. -7 and -29 D. -7
Mathematics
Determine whether or not the first number is divisible by the second number22,669; 6
A. Yes B. No
Mathematics
Find the length of the curve.x = 2 sin t + 2t, y = 2cos t, 0 ? t ? ?
A. 8 B. 12 C. 2? D. 4
Mathematics