45...........................
The general equation for height is:
h = -0.5gt^2 + (v0)t + h0, where g = -9.8 m/s^2 or -32 ft/s^2, v0 = initial velocity, and h0 = initial height.
1) h = -4.9t^2 + 19: -4.9 means the units are in meters, and 19 means that the initial height was 19 m, which is group C.
2) -16t^2 means the units are in feet, and 50t means that the initial velocity was 50 ft/s upwards. This is group B.
3) -16t^2 again means the units are in feet, and 50 means the initial height was 50 ft. This is group D.
4) -4.9t^2 means the units are in meters, and 19 is the initial height of 19 m. This is for group A.
The box measures 6 by 5 by 4
Area of the top and bottom = 2* (6*5) = 60 square inches
Area of the sides = 2 * (5 * 4) = 40 square inches
Area of front and back = 2 * (6 * 4) = 48 square inches
60 + 40 + 48 = 148 square inches
Put both values into a ratio
P:B
28:79
I see no picture, but parallel lines are lines that are by eachother and go the same distance, but never meet. It's like a tilted equal symbol.
