Answer:
perpendicular
Step-by-step explanation:
The slope of y = 3x - 7 is 3.
3x + 9y = 9 → 9y = -3x + 9 → y = -1/3 x + 1 so its slope is -1/3.
This means that they are perpendicular because the product of their slopes is -1.
3, 9, 10, 5, 8, 5, 9, 11, 10, 3, 10
frez [133]
Answer:
See below.
Step-by-step explanation:
Mean:6.87
Median:9
Mode:10
Range:8
Standard Deviation:2.84
-hope it helps
Answer:
X = 0 4 8 12
Y = 10 7 4 1
Step-by-step explanation:
Given:
Cost of one T shirt = $15
Cost of one sweater = $ 20
To find :
The graph that will represent both number of T-shirts and sweatshirts = ?
Solution:
Let the number of t-shirts be x
The number of sweaters be y
They want to rise a found of $200
Then the equation to represent this situation is
15x + 20y = 200
By trial and error method
15(12) + 20(1) = 200
15(8) + 20(4) = 200
15(0) + 20(10) = 200
15(4) + 20(7) = 200
Answer: The slope is 5.
Step-by-step explanation: Use formula: (y2-y1)/(x2-x1)
(7-2)/(4-3)
5/1 = 5
Have a nice day! :)