You randomly draw a marble from a bag of marbles that contains 7 blue marbles, 2 green marbles, and 1 red marble. what is the probabiablity

The height of the triangle is 2 less than 5 times its base. If the base of the triangle is x feet, and the area of the triangle is 12 ft.² which equation models that situation?

What is the recursive formula for the sequence 3, 12, 48, 192, 768 ... ? a1 = 3, an = (an - 1) (-4) a1 = 3, an = (an - 1) - 4 a1 = 3, an = (an - 1) (4) a1 = 3, an = (an - 1) + 4

System of linear equations can have how many solutions?

Thomas has a box with four black color bottles and eight gray color bottles. Two bottles are drawn without replacement from the box. What is the probability that both of the bottles are gray

If U = {all positive integers} and A = x ∈ U and x is an odd positive integer, which describes Ac?

Describe the process of factoring using the 'x' method or the 'box' method

For women aged 18-24, systolic blood pressures (in mm hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1.

The base of a right circular cone has a radius of 4 inches and a slant height of 9 inches. If the radius and the slant height are multiplied by 6, by what factor is the surface area multiplied? A. 6 B. 36 C. 24 D. 54

2. Solve the following system. Show all your work. - 3x + 2y + z = - 6 x + 3y + 2z = 5 4x + 4y + 3z = 13 Is there a step I'm skipping because every time I add the first 2 equations, I keep getting - 2x + 5y + 3z with no variables eliminated.

Lucy wants to divide 18.6 by 1.2 in order to estimate the quotient which is the best expression to use? A:10:1 B:10:2 C:20:1 D:20:2