Answer:
4r ^2 +9r + 12
Step-by-step explanation:
Hope this helps! :)
Answer:
-3
Step-by-step explanation:
if u need an explanation, reply and i'll give it to you. If not, have a good day :)
A + b = 87
a = b - 11
b - 11 + b = 87
2b - 11 = 87
2b = 87 + 11
2b = 98
b = 98/2
b = 49 <===
a = b - 11
a = 49 - 11
a = 38 <===
Perimeter = sum of all 3 sides in a triangle
so
x + x - 4 + 12= 26
answer
B. <span>x + x - 4 + 12 = 26</span>