<span>a line crosses the x axis when y = 0
0 = -3x - 18
Add 3x to both sides
3x = -18
Divide both sides by 3
x = -6
Graph intersects x axis at point
(-6, 0)
</span>
Answer:
y = cos(x) -1
Step-by-step explanation:
The function has a maximum at x=0, a peak-to-peak amplitude of 2, and a period of 2π. It matches a cosine function that has been shifted down 1 unit.
y = cos(x) -1
Are there supposed to be answers on am i just stupid
Answer:
the first one 
Step-by-step explanation:
Factor 
:
Break the expression into groups
Merge Overlapping Intervals
Answer:
x=√14
Step-by-step explanation:
Hi there!
We are given a right triangle (notice the right angle), with acute angles measuring 45° and 45°, the hypotenuse (the side opposite from the right angle) labeled as x, and one of the legs (one of the sides that makes up the right angle) labeled as √7
As these two angles are the same measure, the triangle is isosceles.
So that means that the measure of the other leg (the unmarked side) is also √7.
This triangle is a special type of triangle; a 45°-45°-90° triangle. For this triangle, if the length of the legs are a, then the hypotenuse has the length a√2
In this case, √7 is a, and as x is the measure of the hypotenuse, it must be equal to a√2, which substituting the values of a would get √7 * √2, which is √14.
The radical cannot be simplified further, so √14 is the answer.
Hope this helps!
