Answer:
5 feet.
Step-by-step explanation:
Please find the attachment.
Let x be the length of ramp.
We have been given that a ramp extends from the back of a truck bed to the ground. The back of the truck bed is 4 feet above the ground. The horizontal distance from the spot below the back of the truck bed to the bottom of the ramp is 3 feet.
We can see from our attachment that ramp and the height of truck bed form a right triangle, so the length of ramp will be equal to hypotenuse of right triangle with two legs of 4 feet and 3 feet.
We will use Pythagorean theorem to solve for the length of ramp.
Upon taking square root of both sides of our equation we will get,
Since length of ramp can not be negative, therefore, length of ramp will be 5 feet.
Answer:
This question is pretty simple, half the values given are just to confuse you
notice that we are given a function which gives us the height of the rock at any given time, so if we use that function for t=2 seconds, we will get the height of the rock after 2 seconds
We are given the function:
<em>h(t) = -16t² - 50t + 220</em>
replacing t with 2
<em>h(2) = -16(2)² - 50(2) + 220</em>
<em>h(2) = -16(4) - 100 + 220</em>
<em>h(2) = -64 - 100 + 220</em>
h(2) = 56 feet
Therefore, the height of the rock 2 seconds after throwing is 56 m
2.5 divided by 19.625 is 7.85.