Answer:

Step-by-step explanation:
we know that
The perimeter of triangle is equal to the sum of the length of the three sides
Let

the formula to calculate the distance between two points is equal to
Find the distance AB

substitute in the formula
Find the distance BC

substitute in the formula
Find the distance AC

substitute in the formula
Find the perimeter


Multiply both 711.9 and 8.4 by 10 which will remove the decimal point.
and make the calculation much more easier
the required answer would be 84.75
Answer:
5x + 15
Step-by-step explanation:
To expand the binomial, you need to multiply each term inside the parentheses by 5.
(x + 3)5
= (x * 5) + (3 * 5)
= 5x + 15
10.25 x 4
20.5 x 2
41 x 1
Hope this helps :)