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yanalaym [24]
3 years ago
10

The slope of two lines are - 3/2 and 18/a. Determine the value of α that will make the lines:

Mathematics
1 answer:
Yuliya22 [10]3 years ago
5 0

Answer:

a) a=-12

b) a=27

Step-by-step explanation:

a) parallel lines have = slopes SO

-3/2 = -3/2

-3/2 = 18/a

-3a/2 = 18

-3a = 18 * 2 = 36

a = -12

b) perpendicular lines have negative inverse slopes SO

- 3/2 ---> 2/3

2/3 = 18/a

2a/3 = 18

2a = 18 * 3 = 54

a = 54/2 = 27

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Mumz [18]

I'm not sure about my answer,but still writing it...

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3 years ago
PLZ HELP ASAP (Algebra)
Cerrena [4.2K]

Answer:

Step-by-step explanation:

Whenever you add two number x and -x and it becomes 0 . IT is the identity property.

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8 0
3 years ago
If a plank which is 10 feet long is cut into
Firlakuza [10]

Answer:

If a plank which is 10 feet long is cut into two pieces and if one piece is x feet long,

Then the other piece will be (10 – x) feet long.

Here the value of the one piece is given as ‘x’ value

so the represent of the length of the other part will be (10 – x ) feet

know more about “ratio” here:

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3 0
1 year ago
Given the definitions of f (x) and g(x) below, find the value of (g • f)(9).
Stells [14]

9514 1404 393

Answer:

  (g·f)(9) = 496

Step-by-step explanation:

One way to do this is to find the values of g(9) and f(9).

  g(9) = (3x -1)x +14 = (3(9) -1)(9) +14 = 26(9) +14 = 248

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Then ...

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8 0
3 years ago
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max2010maxim [7]

Answer:

2(b - 9) \geqslant 26

Step-by-step explanation:

difference of a number and 9 means to subtract

b - 9

twice that means multiply by 2

2(b - 9)

at least is greater than or equal to

2(b - 9) \geqslant 26

8 0
3 years ago
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