Simplify the expression. Write the answer using positive exponents.
-4
A. - 
B. - 
C. 
D. 
Answer: C
Mathematics
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Use implicit differentiation to find dy/dx.x = sec(9y)
A. 
cos(9y) cot(9y)
B. 
sec(9y) tan(9y)
C. 9 sec(9y) tan(9y)
D. cos(9y) cot(9y)
Mathematics
Find the product.x2(x - 2)3
A. x5 - 6x4 + 12x3 - 8x2 B. x5 - 6x4 + 8x3 - 8x2 C. x5 - 6x4 + 6x3 - 8x2 D. x5 - 2x4 + 8x3 - 8x2
Mathematics
Fill in the missing numbers.
A. a = 8 B. a = 6 C. a = 5 D. a = 7
Mathematics
Solve.A vendor has learned that, by pricing hot dogs at $1.25, sales will reach 91 hot dogs per day. Raising the price to
will cause the sales to fall to 61 hot dogs per day. Let y be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that relates the number of hot dogs sold per day to the price x.
A. y = - 
x + 
B. y = 40x + 41
C. y = -40x - 141
D. y = -40x + 141
Mathematics