Answer:
y = -1/2x + 5/2 or y = -0.5x + 2.5
Step-by-step explanation:
perpendicular lines have reciprocated slopes (opposite signs and values)
y = 2x + 1 → y = (-1/2x) + b
plug in (3,1) to find b
1 = -1/2(3) + b
1 = -1.5 + b
2.5 = b
y = -1/2x + 5/2 or y = -0.5x + 2.5
Let the two numbers be x and y
then x+y=9
x-y=3
2x=12
x=6
6+y=9
y=3
so the numbers are 9 and 3
D
Question 9
10 pts
An equilateral triangle with side length 1.5 is dilated with a scale factor of 4. What is the length of one
side of the image of the triangle?
A 0.375
B 3
C 1.5
D 6
Answer:
its a bit blurry i cant see
Step-by-step explanation:
Answer:
75
Step-by-step explanation:
subtract 65 from 125 giving your 60 then divide 60 by 0.80= 75
