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postnew [5]
2 years ago
13

PLEASE HELP IM STUCK ONLY 3 MORE QUESTIJONS

Mathematics
1 answer:
True [87]2 years ago
3 0

Answer:

y = - 2x + 8

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = \frac{1}{2} x - 9 ← is in slope- intercept form

with m = \frac{1}{2}

given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{1}{2} } = - 2

y = - 2x + c ← is the partial equation

to find c substitute (3, 2 ) into the partial equation

2 = - 6 + c ⇒ c = 2 + 6 = 8

y = - 2x + 8 ← equation of perpendicular line

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Cheryl regularly checks her bank account balance online. Yesterday her account balance was $67.12. Today the balance is -$2.56.
AURORKA [14]
Just by simply adding the two quantities you can get the net change.  $67.12 +(addition sign because we want the net change) $2.56= $69.68.  The last number is the net change!
8 0
4 years ago
Answer this pleaseee!!!
mart [117]
The answer would be B
4 0
3 years ago
Widescreen televisions have an aspect ratio of 16:9. for every 16 squares of width, there are 9 squares of height. a. if the scr
monitta

a. if the screen on the left is 40 inches wide, the height of The television is 22.5 inches.

b.  if the screen on the right is 40 inches tall, its width is 71.11 inches.

We are well aware that ratio and proportion will be used if a dependency is given in the form of two variables and other variables are requested.

it is given that, There are 9 height squares for every 16 width squares.

a. We need to tell height when the width is 16 inch

the height of the television whose width is 40 inch=\frac{(9)(40)}{16}

                                                 Therefore, Height=22.5 inches

b. to find width when height is 40 inches.

width of the tv is when height is 40 inches=  \frac{(40)(16)}{9}

                                                 Therefore, width = 71.11 inches.

As a result, a widescreen television has a width of 71.11 inches and a height of 22.5 inches when its width is 40 inches.

         

To know more about Ratio and Proportion, visit here:

brainly.com/question/26974513

#SPJ4                            

4 0
1 year ago
When exchanging US Dollars (USD) for Philippine Peso.(PHP) the number of philippine pessos received is directly Proportional to
Tasya [4]

Answer:

1: 36.561

2: 45701.25

Step-by-step explanation:

31076.85/850 = 36.561

36.561*1250=45701.25

3 0
3 years ago
Help needed desperately
Aneli [31]

Answer:

80° , 100°, 80°

Step-by-step explanation:

∠ 1 and ∠ 2 form a straight line and sum to 180° , then

2x + 40 + 2y + 40 = 180

2x + 2y + 80 = 180 ( subtract 80 from both sides )

2x + 2y = 100 → (1)

∠ 1 and ∠ 3 are vertical angles and are congruent , then

2x + 40 = x + 2y ( subtract x from both sides )

x + 40 = 2y ( subtract 40 from both sides )

x = 2y - 40 → (2)

Substitute x = 2y - 40 into (1)

2(2y - 40) + 2y = 100

4y - 80 + 2y = 100

6y - 80 = 100 ( add 80 to both sides )

6y = 180 ( divide both sides by 6 )

y = 30

Substitute y = 30 into (2)

x = 2(30) - 40 = 60 - 40 = 20

Thus x = 20 and y = 30

Then

∠ 1 = 2x + 40 = 2(20) + 40 = 40 + 40 = 80°

∠ 2 = 2y + 40 = 2(30) + 40 = 60 + 40 = 100°

∠3 = x + 2y = 20 + 2(30) = 20 + 60 = 80°

8 0
3 years ago
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