What does C and R stand for in ncr for a-level maths statistics?

A ball is thrown straight up with a initial velocity of 56 feet per second. The height, h, of the ball t seconds after it is thrown is given by the formula h (t) = 56t-16t^2. What is the maximum height of the ball?

How to Make 4/2 into a mixed number

Evaluate the following expression [10*2 + (30-15) : 7+3*8

Logan's bird feeder holds 1/4 of a cup of birdseed. Logan is filling the bird feeder with a scoop that holds 1/8 of a cup. How many scoops of birdseed will Logan put into the feeder?

Evaluate. 33+1⋅9+12 24 30 48 264

Which expression is equivalent to the expression below? (4x + 2y - z) - (x - y + 7)

13y-7y=9 Solve for y, write it as a reduced fraction.

In a family with 7 children, excluding multiple births, what is the probability of having exactly 2 girls? Assume that having a boy is as likely as having a girl at each birth.

A baseball player hit 65 home runs in a season. Of the 65 home runs, 19 went to right field, 23 went to right-center field, 9 went to center field, 11 went to left-center field, and 3 went to left field.

How many milliliters of olive oil (D=0.92 g/mL) have the same mass as 1.80 L of gasoline (D=.74 g/mL)