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3 years ago

Line a is represented by the equation y=−2x+3 .

Mathematics

2 answers:

lana [24]3 years ago

8 0

Answer:

1)y=2x-1: Neither

2)y=-2+5: Parallel

3)y=12x+7: Perpendicular

Step-by-step explanation:

I went on Desmos.com and graphed all of the equations. 1) crosses the equation but is not perpendicular because it doesnt form a 90 degree angle. 2) is obvious when you look at the graph and lastly 3) is the only one left and when it crosses it makes a 90 degree angle. Hope this helps <3

Daniel [21]3 years ago

6 0

Y = -2x + 5 is parallel to line as the slopes ( = -2) are the same.

the other 2 lines are nether parallel or perpendicular

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Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

The experimental probability that Amir will make a basket is 0.4. The experimental probability that Juju will make a basket is 0

madreJ [45]

Answer:

30 baskets

Step-by-step explanation:

The experimental probability Pa that Amir will make a basket is 0.4;

Pa = 0.4

the experimental probability Pj that juju with make the same basket is 0.6;

Pj = 0.6

Total number of shoot Nt = 150

Number of basket Amir will make is;

Na = Pa × Nt

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6 0

3 years ago

Read 2 more answers

What is 3x+2y=-13 3x+4y=1

Zepler [3.9K]

Answer:

The values are

x = -25/9 = -2 7/9

y = 7/3 = 2 1/3

Step-by-step explanation:

3x + 2y = -13 --------eqn 1

3x + 4y = 1-------------eqn2

Using eqn 2 to get the value of y

3x + 4y = 1

4y = 1 - 3x

Dividing both sides by 4,to get y

4y/4 =( 1 -3x) / 4

y = (1 - 3x) / 4

Since we've gotten the value for y, substitute the value into eqn 1

3x + 2y = -13

3x + 2(3x - 1)/4 = -13

Opening the bracket

3x + (6x - 2)/4 = -13

LCM = 4

(12x + 6x - 2) / 4 = -13

18x - 2 / 4 = -13

Then we cross multiply

18x - 2 = -13 * 4

18x - 2 = - 52

18x = -52 + 2

18x = -50

Divide both sides by 18, to get the value of x

18x/18 = -50/18

x = -25/9

or x = -2 7/9

The value of x is now known, so let's go back to eqn 2

Substitute x = - 25/9

3x + 4y = 1

3(-25/9) + 4y = 1

Open the bracket

-75/9 + 4y = 1

Make y the subject of the formula

4y = 1 + 75/9

LCM = 9

4y = (9 + 75)/ 9

4y = 84/9

To get y, divide both sides by 4

4y/4 = 84/9 / 4/1

y =

Note : when division changes to multiplication, it always be in its reciprocal form

y = 84/9 / 1/4

y = 84 * 1 / 9 *4

y = 84/ 36

y = 7/3

y = 2 1/3

4 0

3 years ago

A school requires an entrance exam score that is in the top 3% of the population in order to be accepted. If an entrance exam ha

Troyanec [42]

The answer is letter C.) 603.40

The minimum required score can solved using the equation
MRS = mean + (zscore)(SD)

where z score of 0.03 is 1.88

MRS = 500 + (1.88)(55)
MRS = 603.40

Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.

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3 years ago