a waterfall has a height of 1400 feet. a pebble is thrown upward from the top of the falls with an initial velocity of 16 feet per second. the height, h, of the pebble aftert
seconds is given by the equation hs - 167" + 16 + 1400. how long after the pebble is thrown will it hit the ground?

2.9437 seconds

Step-by-step explanation:

I assume that you made a typo and the equation is -167s² + 16s + 1400

Find the zeros of the equation, or where it crosses the x-axis, to find at what time the pebble hits the ground. At these points, the height will be 0.

Use the quadratic equation

= -2.8479

= 2.9437

The negative answer doesn't make sense since time (s) starts from 0 and must be postive. Therefore, the answer is 2.9437

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.