Which equation represents a parabola that has a focus of (0, 0) and a directrix of y = 4?

x2=-8 (y-2)

x2=-2y

x2=-8y

x2=-2 (y-2)

The probability that Janice will attend math class today is 62%. The probability that Ellie will attend math class if Janice attends is 100%. Ellie will not attend the class unless she hears from Janice first.

2^X = 17^X How do you solve that equation?

74.94*103= because the number 10³ has? zeros when it is written without an exponent.

Simplify the expression. - 9 (z + 3) - 5 (2z + 10) A. - 19z - 77 B. - 19z + 13 C. - 19z - 13 D. - 11z + 77

If you're given two different numbers on a number line what can you say for certain about the numbers that's farther to the right

Factor the following quadratics 1) w^2 + 18w + 77 2) x^2 - x - 42

How do you write 1:3 as a fraction

A cylinder has an 18-inch diameter and is 15 inches tall. It is filled to the top with water. A 6-inch-diameter ball is placed within the cylinder, and then the cylinder is filled with water.

Solve) - 3 (9n - 8) + 5r use n = 2 and r = 8

Angle A is circumscribed about circle O. What is the measure of Angle A?