Which of the following represents the line of symmetry of the parabola represented by the equation x2 - 10x + 21 = 0?

A. x = 3

B. x = 2

C. x = 4

D. x = 5

A cell phone package charges $39 even if 0 minutes are used during the month. Each additional minute of talk time adds a $0.07. Write an equation to model this situation in slope-intercept form.

A humpback whale swims at 40mph for 30 minutes, then rests for 15 minutes, then swims at 32 mph for 45 minutes. What is the whale's average speed in miles per hour?

I drove my car on cruise control at 65 miles per hour for 3 hours without stopping how far did I go

Array processing (elimination of three largest values) (one of many array reduction problems) The array a (1 ... n) contains arbitrary integers. Write a function reduce (a, n) that reduces the array a (1 ...

Suppose that f (2 ) equals4 and that fprime (x) equals0 for all x. must f (x) equals4 for all x? give reasons for your answer.

What is 59.69 written in expanded form

Which expression is equivalent to 73 ⋅ 7-5?

What are the measures of all three angles of triangle ABC with side lengths 8,11, and 17?

NeNe tripled a cookie recipe for a party. The original recipe called for 5.25 cups of sugar. NeNe tripled the sugar amount and poured it into a mixing bowl. The mixing bowl got knocked over and 4.46 cups of sugar spilled.

What is the standard form equation of 4x+7¥=11