Answer:
1
Step-by-step explanation:
y=mx+b, equation for slope-intercept line
we can work out the equation based on given two points (1,1) and (7,4)
- m=(y2-y1)/(x2-x1)= (4-1)/(7-1)= 3/6= 1/2
y=1/2x+b
For (1,1)
For (7,4)
So we get
The answer is 1 for question mark
Answer: 20%
Step-by-step explanation: 600*0.20 = 120
Answer: 20, 70, 90
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Work Shown:
Let x be some positive real number.
Multiply each part of the given ratio by x to get 2x:7x:9x
So we have the three angles 2x, 7x, and 9x.
For any triangle, the three angles must add to 180
2x+7x+9x = 180
18x = 180
x = 180/18
x = 10
This leads to
- 2x = 2*10 = 20
- 7x = 7*10 = 70
- 9x = 9*10 = 90
The three angles of this triangle are: 20, 70, 90
This is a right triangle due to the 90 degree angle.