Solve. The length of a rectangular frame is 5 cm more than the width. The area inside the frame is 84 square cm. Find the width of the frame.
A. 9 cm
B. 7 cm
C. 17 cm
D. 12 cm
Answer: B
Mathematics
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Use De Moivre's theorem to simplify the expression. Write the answer in a + bi form.(-5
+ 5i
)3
A. 5
+ 5i
B. 500
+ 500i
C. 50
+ 50i
D. 15
+ 15i
Mathematics
For the given functions f and g , find the indicated composition.f(x) = 
,g(x) = 7x + 5(g?f)(x)
A. x
B. x - 
C. x + 10
D. 7x + 30
Mathematics
Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form.(6, -3); slope: -7
A. y = -7x + 37 B. y = -7x + 40 C. y = 7x + 38 D. y = -7x + 39
Mathematics
Find the domain of the function.f(x) = -6x - 6
A. (-?, 0) ? (0, ?) B. (-?, ?) C. (0, ?) D. (6, ?)
Mathematics