Write the expression using exponents.(-7x)(-7x)(-7x)(-7x)
A. -7x4
B. -28x
C. -(7x)4
D. (-7x)4
Answer: D
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Solve the problem.Let f(x,y) = ln (x2 + y2). Which one of the following curves is a simple closed path in the domain of the function f?
A. The unit circle x2 + y2 = 1
B. The ellipse 
+ 
= 1
C. The rectangle with vertices at (-3, 2), (3, 2), (3, -2), and (-3, -2)
D. The unit circle (x - 5)2 + y2 = 1
Find the probability of the event.A die is rolled 18 times and two threes come up.
A. 0.230 B. 0.099 C. 0.160 D. 0.060
The terminal side of ? in standard position contains the given point. Find the values of the six trigonometric functions of ?.(-5, 12)
A. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
B. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
C. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
D. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
Graph the inequality by shading the points that do not satisfy it.x ? 5
A. 
B. 
C. 
D. 