Answer:
x - 3y + 8
Step-by-step explanation:
The perimeter of a triangle is sum of all the three sides.
One side is 5x + y
Another side is 7 + x
Let third side be m
And perimeter is 7x - 2y + 15
We simply sum the 3 sides and equate it to expression of perimeter and find m(third side). Shown below:
5x + y + 7 + x + m = 7x - 2y + 15
6x + y + 7 + m = 7x - 2y + 15
m = 7x - 2y + 15 - 6x - y - 7
m = x - 3y + 8
This is the length of the third side "x - 3y + 8"
Answer:
(-1, 5) and (3, -3)
Step-by-step explanation:
The solutions are all the points where the two functions intersect. Since the lines intersect at two different points, there are two solutions.
The two points at which the functions appear to intersect are (-1, 5) and (3, -3).
Answer: A
Step-by-step explanation:
Letting 
,
Also, the domain of an inverse is the same as the range of the original function, so the range is 
Answer:
m=3/4
Step-by-step explanation:
use y=mx+b formula
Answer: B
Step-by-step explanation: area of rectangle is 300. Area of semi circle is 353
