Answer:
x = ±4.5
Step-by-step explanation:
4x² - 15 = 66
Add 15 to both sides.
4x² = 81
Divide both sides by 4.
x² = 20.25
Take the square root of both sides.
x = ±4.5
Hope this helps!
Ok, so your answer would be 89.75
Here's a photo of the solution. Hope it helps and please give brainlist!
The triangle would be an isosceles triangle, because it has two equal sides and two equal angles
Answer:
C. y = 66
Step-by-step explanation:
this is a equal triangle so you know you have to find out what that one angle is to get the rest
180 - 114 = 66