Evaluate -(-x) for the given value of x.x = -70
A. - 
B. -70
C. 0
D. 70
Answer: B
Mathematics
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Find the general solution of the differential equation. Use C, C1, C2, . . . to denote arbitrary constants. If used, do not simplify hyperbolic functions.y'(t) = 7 + e-4t
A. y = 7 - 
+ C
B. y = 7t + e-4t + C
C. y = -4e-4t + C
D. y = 7t - 
+ C
Mathematics
Solve the equation.
- 3x = 0
A. x = ±5 B. x = 4 C. x = 8 D. x = ±4
Mathematics
Express the fraction or mixed number as a percent.
A. 0.0625% B. 0.00625% C. 0.625% D. 6.25%
Mathematics
Factor, if possible.10z3 + 9z2 - 9z
A. z(10z + 1)(z - 9) B. (2z + 3)(5z2 - 3z) C. z(2z + 3)(5z - 3) D. (2z - 3)(5z + 3)
Mathematics