Add or subtract as indicated.(3rs + 8s2) - (6r3 + rs- 2s2)
A. -6r3 - 3rs + 6s2
B. -6r3 - 4rs + 10s2
C. -5r3 - 4rs + 6s2
D. -5r3 - 2rs + 10s2
Answer: B
Mathematics
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Solve.5(2z - 2) = 9(z + 4)
A. z = -26 B. z = 31 C. z = 26 D. z = 46
Mathematics
Find the extreme values of the function subject to the given constraint.
A. Maximum: 6 at (0, ±1); minimum: 7 at (±1, 0) B. Maximum: 6 at (±1, 0); minimum: 7 at (0, ±1) C. Maximum: 6 at (±1, 0); minimum: 0 at (0, 0) D. Maximum: 6 at (0, ±1); minimum: 0 at (0, 0)
Mathematics
Simplify.
2 + 3 ? 1
÷ 18
A. 
B. 1
C. 1
D. 1
Mathematics
Find the exact value of the trigonometric expression without the use of a calculator.
A. -2
B. - 
C. -
D. - 
Mathematics