F(x) = 4 [cos (x)]^2 - 3 = 0
4[cos(x)]^2 = 3
cos(x) = √3 / 2
That happens in the first and fourth quadrants, for the angles 30 degrees and 330 degrees.
Answer: x = 30 degrees and x = 330 degrees
Answer:
The correct answer is choice D.
Step-by-step explanation:
Since the parabola opens sideways, that means the function will feature
and not
, so you can immediately rule out options B and C. Because the graph also opens right, that means the coefficient of
is positive. Using all of this information, you'll find that the correct answer is D:
.
Answer: 147 square feet.
Step-by-step explanation: 7x7x3= 147 square feet.