Evaluate the formula at the given value of the variable.z = 
,a = 5
A. z = 625
B. z = 
C. z = 25
D. z = 5
Answer: D
Mathematics
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Solve the equation. If the equation is an identity or a contradiction, state this.10x - 7 = 50 - 9x
A. x = 57 B. x = -3 C. x = 3 D. x = 43
Mathematics
At the given point, find the slope of the curve, the line that is tangent to the curve, or the line that is normal to the curve, as requested.y6 + x3 = y2 + 9x, tangent at (0, 1)
A. y = - 
x - 1
B. y = - 
x
C. y = 
x + 1
D. y = 
x + 1
Mathematics
Solve the equation.4-x =
A.
B.
C.
D. 
Mathematics
Multiply. Write the answer as a mixed number as needed.
2
A. 3
B. 7
C. 1
D. 21
Mathematics