Simplify the expression.(-9)(-9)
A. -81
B. 81
C. 91
D. 162
Answer: B
Mathematics
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Simplify the expression involving rational exponents.(-81)1/2
A. 9 B. Not a real number C. -4.5 D. -9
Mathematics
Simplify the expression. Assume all variables represent nonzero real numbers.(5t)5
A. 55t5 B. 5t5 C. 25t5 D. 55t
Mathematics
Graph using the slope and the y-intercept.y = -0.102x - 3.125
A. 
B. 
C. 
D. 
Mathematics
Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. infinitely many solutions; dependent equations B. no solution or ? C. {(-5, 2, 4)} D. {(-5, 4, 2)}
Mathematics