Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. - 
C. 
D. 
Answer: C
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Find the x- and y-intercepts of the graph of the given equation, if they exist. Then graph the equation.-4x - 20y = 20
A. x: 5; y: -1
B. x: -1; y: -5 
C. x: -5; y: -1 
D. x: -1; y: 5
Evaluate the definite integral.
?
?
A. 
B. 
C. 
D. 
E. 
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(-5x + 11y)(-3x + 11y)
A. 15x2 - 88xy - 88y2 B. 15x2 - 33xy + 121y2 C. 15x2 - 55xy + 121y2 D. 15x2 - 88xy + 121y2
Solve the problem.Suppose a cold front is passing through the United States at noon with a shape described by the function src="https://sciemce.com/media/4/ppg__10703191739__f1q36g6.jpg" alt="" style="vertical-align: -4.0px;" /> SSuppose the front moves south 340 miles and west 120 miles and maintains its shape. Give the equation for the new front and plot the new position of the front.
where each unit represents 100 miles. 
Missouri is located at 
and the positive y-axis points north.N
A. y = - 
(x + 1.2)2 - 3.4N 
S
B. y = 
(x - 1.2)2 + 3.4N 
S
C. y = 
(x - 1.2)2 - 3.4N 
S
D. y = 
(x + 1.2)2 - 3.4N 
S