Answer:
see explanation
Step-by-step explanation:
(1)
Given the perimeter then the third side is the perimeter subtract the sum of the 2 given sides, that is
third side
= 4x + 3y - (x - y + x + y)
= 4x + 3y - 2x ← collect like terms
= 2x + 3y
(2)
The area (A) of a triangle is calculated as
A = 
bh ( b is the base and h the height )
Here b = 2x + 6 and h = x - 2, thus
A = (2x + 6)(x - 2) ← expand factors using FOIL
= (2x² + 2x - 12) ← distribute
= x² + x - 6 ← in standard form
I think its 50 because they are half of each others ages so half of 100 is 50 hope it helps sorry if im wrong
Answer:
k;p
Step-by-step explanation:
Answer:
A program at a community college can be completed in no fewer than 8 months, but must be completed in less than 11 months.
Step-by-step explanation:
1. The closed dot means the number is equal to and the open dot means the number is less/ greater than
2. The line goes right from the 8 with a closed dot, making x greater than or equal to 8
3. The line goes left from the 11 with an open dot, making x less than ll
4. This means the number must be equal to or greater than 8, and less than 11
Answer:
Sum 9,200 + 4,000 = 13,200
Difference 9,200 - 4,000 = 5,200
Step-by-step explanation:
