Answer:
x=6.42
Step-by-step explanation:
Multiply both sides by 5.35.
x=1.2×5.35
Simplify 1.2×5.35 to 6.42.
x=6.42
Answer:6.1638 7.69 8.18.04
Step-by-step explanation:
Answer:
2x+23
Step-by-step explanation:
The perimeter of a triangle is calculated by adding the sum of all sides.
Therefore, in the given problem, the perimeter will be:
Perimeter = 21-x + 2x-3 + x+5
= 2x+23
Isosceles triangle
9x + 3 = 84
9x = 81
x = 9
answer
<span>D. 9</span>