Evaluate the expression.-73
A. 21
B. -21
C. -343
D. 343
Answer: C
Mathematics
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Provide an appropriate response.For approximately what values of x can sin x be replaced by 
with an error of magnitude no greater than 
?
A. |x| < 0.59106 B. |x| < 0.40357 C. |x| < 0.45942 D. |x| < 0.54146
Mathematics
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ? B. {(0, 0)} C. {(-1, 1)} D. {(-1, -1)}
Mathematics
Solve the system by using the inverse of the coefficient matrix. 2x + 4y - z = 48 x + 6y + 6z = 73-4x + y + z = -17
A. (7, 9, 2) B. (8, 7, 2) C. (9, 2, 9) D. (7, -9, -2)
Mathematics
Solve.-2y + 5 = 1 - 10y
A. {2}
B. {- 
}
C. {- 2}
D. ?
Mathematics