Answer:
slope= 3/2
y-intercept= -1/2
Step-by-step explanation:
The product of the gradients of 2 perpendicular lines is -1.
Substitute a coordinate into the equation.
When y=7, x=5,
What is the greatest common factor of 7, 35, and 28?
2 answers:
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Answer:
12
Step-by-step explanation:
Assuming the diagram is thesame as the one attached,
From the diagram,
Triangle ABC is similar to Triangle DEC
ΔABC is similar to ΔDEC
Note: In similar triangle, ratio of corresponding sides are equal
Therefore,
line(AB) /line(DE) = line(BC)/line(EC).................... Equation 1
Given: AB = 20, BC = 15, EC = BC-BE = (15-6) = 9
Substitute these values into equation 1 and solve for Line DE
20/DE = 15/9
DE = (20×9)/15
DE = 12.
Hence line DE = 12.
