Answer:
14
14
47
Step-by-step explanation:
An isosceles triangle has two opposite sides. If the two angles are equal , it means the triangle is an isosceles. Because 90 degrees is greater than 45 degrees, the two sides with the same length, would have a smaller length than the third side.
5 + 3x + x + x = 75
5 + 5x = 75
5x = 70
x = 14
5 + 3(14) = 47
So we need to solve:
3ˣ⁻¹ = 9ˣ⁺²
To do this, we need to have the same base for both sides of the equation.
So let's go with the base of 3.
3² = 9
3ˣ⁻¹ = (3²)ˣ⁺²
3ˣ⁻¹ = 3²ˣ⁺⁴
Since the bases are the same now, we need to get rid of them and we would get:
x - 1 = 2x + 4
Subtract both sides by 2x:
-x - 1 = 4
Add 1 to both sides:
-x = 5
Divide both sides by -1:
x = -5
Answer:
a
Step-by-step explanation:
idk
Answer:y=3x+2
Step-by-step explanation:
Answer:y=2x+4
explanation:
−10x+5y=20
Step 1: Add 10x to both sides.
−10x+5y+10x=20+10x
5y=10x+20
Step 2: Divide both sides by 5.
5y=10x+20
5. 5
Y=2x+4
