Line c passes through points (7, 10) and (5, 19). Line d is perpendicular to c. What is the slope of line d?

Mathematics

1 answer:

muminat3 years ago

3 0

Answer:

2/9

Step-by-step explanation:

slope of line C: (19 - 10) / (5 - 7) = - 9/2

line d perpendicular to Line C, slope of d: 2/9

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Answer:

x=0.4 and y=0.6

Step-by-step explanation:

Given :

$\frac{x}{2} +y=0.8\\x+2y=1.6.......(1)\\\frac{7}{x+y/2} =10\\\frac{7}{2x+y/2} =10\\\frac{7*2}{2x+y} =10\\\frac{14}{2x+y} =10\\14=10(2x+y)\\14=20x+10y.....(2)$

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3 years ago

On Monday, it took 5 builders 3 in a half hours to build a wall.

mrs_skeptik [129]

Answer:

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Step-by-step explanation:

→ First step is to find the amount of hours it takes for one builder

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