Are the lines y = -x - 6 and 3x - 3y = 9 perpendicular? Explain
1 answer:
Answer:
the lines are perpendicular
Step-by-step explanation:
if they are perpendicular the products of their gradients would be -1
the gradient of y=-x-6 is -1
the second equation needs to written to conform to y=mx+c
hence, 3x-3y=9
3x-9=3y
y=3x-9/3=x-3.the gradient of this line is 1
1x-1= -1
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Just multiply across which is
8*5 = 40
21*16 = 336
40/336 = 5/42
This is correct answer
I hope this answer helped you!!! Thank you!!!
Answer:
what are solving it with??
Answer: 25% of 80 = 20
Step-by-step explanation:
(25:100)*80 =
(25*80):100 =
2000:100 = 20
- R3KTFORGOOD ☕
Replace all the x values with -3
f(-3)=-2(-3)^2+5(-3)
f(-3)=2(9)-15
f(-3)=18-15
f(-3)=3
Hope I helped :)
