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Flura [38]
2 years ago
8

Write the equation of a line perpendicular to 3x+2y=6 through (2,-1).

Mathematics
1 answer:
iren [92.7K]2 years ago
4 0
Rearrange: 2y = 6 -3x
2y = - 3x + 6
y = -1.5x + 3
Now, substitute, perpendicular lines have the same gradient so:
-1 = -1.5 (2) + c
- 1 = -3 + c
2 = c

equation for new line: y = 1.5x + 2
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Which expression is an equivalent expression of 12x + 10 + 4y?
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Is there an answer key?

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3 years ago
Find s8 for the following geometric sequence: 3, – 6, 12, – 24.
Alekssandra [29.7K]

Answer:

B. -255

Step-by-step explanation:

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4 0
3 years ago
Find the value of x.
marysya [2.9K]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
Under her cell phone plan, Janelys pays a flat cost of $46.50 per month and $5 per gigabyte. She wants to keep her bill under $7
allsm [11]

Answer:

Less than 4.70 GB

Step-by-step explanation:

Let x = # of GB that Janelys uses that month. Since Janelys wants to pay less than $70 given that the flat rate for subscribing to that company's data per month is $46.50 and each GB costs $5 to use, the inequality can be written as:

5x + 46.50 < 70

5x < 23.50                        Subtract $45.60 from each side.

x < 4.70 GB                       Divide 5 from each side.

Thus, (if it is whole numbers) Janelys can use 4 GB while staying within her budget or (if decimals are fine) anything less than 4.70 GB. Hope this helped! :D

8 0
2 years ago
HERE ARE TWO NUMBER MACHINES A AND B
nika2105 [10]

Answer:

x=-7

Step-by-step explanation:

We can write them both like functions like this

A=5x-4

B=3x+8

Where

x=input

A=Output A

B=Output B

We want the output of A 3 times the output of B this can be written like this:

A=3B

we replace with the functions

5x-4=3(3x+8)

we solve for x

5x-4=9x+24\\5x-9x=24+4\\-4x=28\\x=\frac{28}{-4}\\x=-7

The output that makes the out put of A 3 times teh output of B is -7

5 0
2 years ago
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