Answer:
81a^2+16b^2
Step-by-step explanation:
Answer:
1)b=-4
2)k=4
3)can u explain what #3 and 4 say
4)?
5)0/ no solution
Step-by-step explanation:
Answer:
-3x+1
Step-by-step explanation:
Answer:
790
Step-by-step explanation:
You put 5 instead of x and you calculat
6*5^3 +8*5= 750+40=790
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