Step-by-step explanation:
- 5x²-45=0
- 5x²=45
- x²=9
- x=√9
- x=3
hope it helps.
Answer:
60º
Step-by-step explanation:
The two triangles on the left are equilateral as the sides are all conguent.
The angles of an equilateral triangle are all 60º
Therefor the two angles to the left of angle 1 are both 60º for a combined value of 120º
Angle 1 must be 180 - 120 = 60º
For this case we have the following variables:
x: number of free throws that Tessa made
y: total number of free throws
We now write the relationship of free throws.
We have then:

Simplifying the expression we have:


Answer:
The fraction of the free throws that she made is:

Answer:
5
Step-by-step explanation:
Yes
18/3=6
6x2=12
She can get 12 books from the store