on a windy morning, a hot air balloon starts ascending and flying away from the top of the hill. the altitude, h, in feet, of the balloon x hours after startijg its ascent from the hill can be modeled by the function -16x^2+64x+80. does the parabola open up or down? identify the x and y intercepts

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.

jwjwkwkwkkkdjebd b jdjejdndj he jenej

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~