Solve the equation in the interval [0, 2?). Express solutions as approximations to the nearest hundredth.3 cos2x - 2 cos x - 2 = 0
A. {4.13, 5.29}
B. {2.15, 4.13}
C. {0.99, 5.29}
D. {0.99, 2.15}
Answer: B
Mathematics
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Determine the limit by sketching an appropriate graph.
f(x), where f(x) = 
A. 11 B. 0 C. 16 D. 21
Mathematics
Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = -x2 - 6x - 10
A. 
, (0, -10)
B. No x-intercepts, (0, -10)
C. 
, (0, 10)
D. No x-intercepts, (0, 10)
Mathematics
Solve the problem.
The rectangle above has length 9x and width 4. The perimeter of the rectangle is represented by the algebraic expression 
Evaluate the expression for 
A. 34 B. 44 C. 108 D. 144
Mathematics
Write the sum or difference in the standard form a + bi.(7 + 9i) - (-5 + i)
A. -12 - 8i B. 2 + 10i C. 12 - 8i D. 12 + 8i
Mathematics