5c + 30 because you use the distributive property 5 x c + 5 x 6
The person HAD homework 75/100 or 75%
the remaining days he did NOT have homework , which is 25/100 or 25%
In order to get the area of a triangle using sides, the formula that we are going to use is Heron's formula. This is after from "Hero of Alexandria".
So here is the step by step process:
First, we calculate for s (half of the triangles perimeter) s = a+b+c divided by 2.
s = 6 + 10 + 12 / 2
s =28/2
s = 14
Now that we have the s, we can now calculate for the area.
A = square root of s(s-a)(s-b)(s-c)
A= square root of 14 x 8 x 4 x 2
A= square root of 896
A = 29.93
The area of triangle DEF is 29.93 square feet or 30 square feet. Hope this answer helps.
Answer:
$3060
Step-by-step explanation:
y = a ( 1+r)^t
y= 3000(1+0.02)^1
y=$3060