Write y=-3x^2+12x-21 in vertex form

A) y=-3 (x-2) ^2-9

B) y=-3 (x+2) ^2-9

C) y=-3 (x+2) ^2+9

D) y=-3 (x-2) ^2+9

The use of social media has grown rapidly. According to one report, about 1.2 million users of social media via mobile devices were added each day. How many users were added, on average, each second? Round your answer to one decimal place?

An animal shelter spends $3.50 per day to care for each cat and $5.50 per day to care for each dog. London noticed that the shelter spent $58.50 caring for cats and dogs on Wednesday.

A grassy space is 6ft by 8 ft. The town wants to add a walking track around this space. If the total area is to be 71 square feet, what should be added to each side of the grassy space

Is negative 8X + 10 = 2 (5-4X) a one step equation

The graph of which equation will intercept the y-axis at 1? 2x + 5y = 8 5x + 2y = 2 5x + y = 2

A percent measures a rate O per unit O per 10 units O per 100 units O per 1,000 units

Celestial object A is composed of 92.1 percent hydrogen and 7.8 percent helium while celestial object B is made up of ice, frozen carbon dioxide, rock and dust what is celestial object A

What is 9% as a fraction or mixed number?

What number does x have to be? - 3 (52) = -3 (x) + -3 (2)

Identify the percent of change as an increase or a decrease. 54 to 38v=