Vertex and axis of symmetry of Y=x^2+2x+1

A bungee jumper falls from a bridge 300 feet above ground. Her height above ground after t seconds is given by the equation h=-16t^2+400 where h is the height of the jumper in feet and t is the time in seconds since her jump.

What is the solution of these two lines? y = 40 + 10x y = 200 + 2x

The base of a triangular pyramid is a triangle with a base of 4 inches and a height of 3.5 inches. The height of the triangular pyramid is 3.3 inches. What is the volume of the triangular pyramid? (this is different than my last question!)

Alice collected donations of $50, $125, $10, $210, $50, $24, and $175 for charity. What is the mean of her collections?

Nicholas is buying shirts for his baseball team. He will pay $9.50 for each shirt plus a one-time fee of $22.50 for the design. Which equation can be used to find y, the total cost to buy x shirts? A) y = 9.5x + 22.5 B) y = 22.5x + 9.5 C) y = 9.

How many different ways can you find of writing 1/2

I DON'T GET IT! >.< Which number can each term of the equation be multiplied by to eliminate the decimals before solving? 5.6j - 0.12 = 4 + 1.1j a. 0.01 b. 0.1 c. 10 d. 100

Solve this number riddle I am an a odd number. I am less than 100. The sum of digits is 12. I am a multiple of 15. What number am I?

Is this an expression or an equation? Three times a number plus five equals twenty

14.36 rounded to the nearest tenth