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marin [14]
3 years ago
14

Write the equation of a line that is perpendicular to the line y=4 and passes through point (-1, 1)​

Mathematics
1 answer:
ipn [44]3 years ago
6 0

Answer:

x = - 1

Step-by-step explanation:

y = 4 is the equation of a horizontal line parallel to the x- axis and passing through all points with a y- coordinate of 4

A perpendicular line is a vertical line parallel to the y- axis with equation

x = c

where c is the value of the x- coordinates the line passes through

The line passes through (- 1, 1) with an x- coordinate of - 1, thus

The equation of the perpendicular line is x = - 1

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15. (NO CALCULATOR) A restaurant took 1/3 of an hour to use 1/5 of a
kotykmax [81]

Answer:

It would take 5/3 or 1 2/3 hours to use a package of napkins.

Step-by-step explanation:

1/3=1/5

2/3=2/5

3/3=3/5

4/3=4/5

5/3=5/5

5/3= 1 2/3

8 0
3 years ago
Choose a method . Then find the product 10x15
34kurt

Answer:

150

Step-by-step explanation:

15*10

Lets get rid of the 0 for now

15*1

That is 15 added to itself 0 times so it is 15

Now lets put the 0 back

and we will get

150

5 0
3 years ago
Read 2 more answers
What is the solution of the matrix equation?
katrin [286]

Hello from MrBillDoesMath!

Answer:

The first choice ( -12, 20)



Discussion:

Using matrix multiplication we find the equations:


1x  + 1y = 8                     (A)

2x  + 3y = 36                   (B)


Next, compute

  2(A) - B  =>

         (2x + 2y) - (2x + 3y) = 2*8 - 36    =>

          (2x - 2x) + ( 2y-3y) = 16 - 36 =>

          -y = -20  =>

         y = 20


Substituting this y value in (A) gives

         x + 20 = 8 =>

         x = 8 - 20 =>

        x = -12


The answer is the first choice ( -12, 20)


Thank you,

MrB

6 0
2 years ago
If m a is 45, then a is ?
dezoksy [38]
Then a is Half of 45 wich is 22.5 I believe. 
5 0
3 years ago
A candle maker plans to make 30 orange candles. She mixes wax to create a specific shade of orange. The ratio of each color in h
otez555 [7]

Answer:2.5 part

Step-by-step explanation:

Given

Candle maker requires 1 quart of wax to make 6 candles

If candle maker makes 30 candles then 5 quart of wax is needed

The quart is made up of 2 part of red+ 5 parts of yellow + 3 Parts of white

i.e. total of 10 parts is required to make orange shade

Yellow is 5 part out of 10 part so

yellow will be 2.5 part in 5 quart  

8 0
3 years ago
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