Complete the identity.
= ?
A. cot 2x
B. cos 2x
C. sin 2x
D. tan 2x
Answer: C
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Graph. Be sure to label the vertex. Round to the nearest hundredth if necessary.y = -5x2
A. 
B. 
C. 
D. 
Find the general form of the equation of the the circle.Center at the point (-4, -3); containing the point (-3, 3)
A. x2 + y2 + 8x + 6y - 12 = 0 B. x2 + y2 + 6x - 6y - 17 = 0 C. x2 + y2 + 6x + 8y - 17 = 0 D. x2 + y2 - 6x + 6y - 12 = 0
Evaluate the expression for the given replacement values. Write the answer in simplest form.x ÷ y for x = 
, y = - 
A. - 
B. - 
C. -9
D. - 
Write a linear inequality for the situation described.It takes 4 cups of sugar to bake a cake and 3 cups of sugar to make a tray of cookies. Mary has a total of 20 cups of sugar to bake x cakes and y trays of cookies.
A. 3x + 4y ? 20 B. 3x + 4y ? 1 C. 4x + 3y ? 0 D. 4x + 3y ? 20