SAT Math Prep (with calculator)

In the figure, segment AC is the diameter, B is a point on the circle and cos x=2/3. What is cos y?

if a is a positive integer and 3^a+3^a+1=n, what is 3^a+2 in terms of n?

If a group of data consists of the numbers 6, 6.5, 8.5, 6, and 8, which of the following is true?

In the system of linear equations, (1/3)x-(1/6)y=3 and kx-5y=30, k is a constant. If the system has no solution, find k

If points A(0,0), B(N, 1), C( 2,N) are collinear, what is the value of N?

Which of the following is the equation of a line perpendicular to the line y+1=4x and has the same y-int as 2x+3y=6?

If ax-a>2a and x-1<-2, then

If 5 and -3 are both zeros of the polynomial function m(x), then a factor of m(x) is

If f(x)=2x+7 and f(g(-1))=15, which of the following could be g(x)?

If y varies inversely as x, which of the following is the equation of variation for y=2/3 and x=9/2?

In the figure, if the perimeter of rect ABCD is equal to P and a=(3/4)b, what is the value of b in terms of P?

What is the radian measure of an angle formed by minute hand and the hour hand when a clock reads 8:30?