Write the expression using exponential notation. Then identify the base and the exponent.x ? x ? x ? x
A. 4x
base: 4
exponent: x
B. 4x
base: x
exponent: 4
C. x4
base: x
exponent: 4
D. x4
base: 4
exponent: x
Answer: C
Mathematics
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What number should be added to complete the square of the expression?x2 + 6x
A. 18 B. 9 C. 3 D. 5
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Find all the first order partial derivatives for the following function.f(x, y) = xye-y
A. 
= ye-y; 
= xe-y(y - 1)
B. 
= ye-y; 
= - xye-y
C. 
= ye-y; 
= xe-y(1 - y)
D. 
= ye-y; 
= xe-y
Mathematics
Find the value of the expression.log625 5
A. -4
B. 
C. 4
D. 
Mathematics
Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even.C(x) = 128x + 330,000R(x) = 278x
A. 2200 units B. 2202 units C. 2201 units D. 772 units
Mathematics