gracye

15.04.2020 • 

Mathematics

WIll Mark Brainliest plus 36 points

An icicle drips at a rate that can be represented by the function f(x) = −x2 + 9x − 18, where 0 ≤ x ≤ 10 and x is the number of hours after the sun has risen. When f(x) is a negative number, the icicle is not dripping. Determine the values when the icicle starts and stops dripping.

x = −3 and x = 6
x = 3 and x = −6
x = 3 and x = 6
x = −3 and x = −6

Ответ:

samone26

01.02.2023

Mathematics

---

You can model this situation with a right triangle ABC, where AB is the horizontal leg, and BC is the vertical leg:

We know that BC=10 and AC=76.

We are interested in angle A.

Using the law of sines, we know that

So, the angle is

---

0,0(0 оценок)