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bogdanovich [222]
3 years ago
9

Which ordered pair is a solution of the equation y = x - 3? (-2, 5) (-5, 2) (2, 5) (5, 2)

Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0
2=5-3 so the answer is (2, 5)
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-2(3x-4)+3x=17 solve for x
Svetlanka [38]

x=-3

-6x + 8 + 3x = 17

-3x + 8 = 17

-3x = 17 - 8

-3x=9

x=-9/3

x=-3

4 0
2 years ago
Tell whether the angles are complementary or supplementary. Then find the value of x.
gladu [14]

Answer:

  • 7) x = 5
  • 8) x = 20

Step-by-step explanation:

Complementary angles form a right angle and supplementary angles form a straight angle.

<h3>#7</h3>

<u>Complementary:</u>

  • 65 + 5x = 90
  • 5x = 25
  • x = 5
<h3>#8</h3>

<u>Supplementary:</u>

  • 2x + 6x + 20 = 180
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  • x = 20
8 0
3 years ago
Read 2 more answers
Please help<br><br> Write an inequality for the given graph
Oduvanchick [21]

Answer:

 y < 1/2x - 3

Step-by-step explanation:

You can write the inequality equation for the graph using the form y = mx + b. The inequality line has a y-intercept at (0,-3). This means b = -3. It also has a slope of 1/2 since the line moves up 1 and over 2 to the next point on the line.

This means the lines equation is y = 1/2x - 3. But since this is an inequality, you must use an inequality sign. Since the line is dashed it is not equal to. Your options are < and >.  Use the point (0,0) to test which sign is appropriate.

y < 1/2x - 3                      y > 1/2x - 3

0 < 1/2(0) - 3                   0 > 1/2(0) - 3

0 < -3                              0 > -3

The answer is y < 1/2x - 3 since (0,0) doesn't make it true and (0,0) is not shaded in the graph. This means it is not a solution.

8 0
3 years ago
Slope Calculation (find the slope) Slope form —&gt; y=mx+b (m is slope)<br><br> 3x=7y+21
Sindrei [870]

Solve for y:

3x = 7y + 21

~Subtract 7y to both sides

3x - 7y = 21

~Subtract 3x to both sides

-7y = 21 - 3x

~Divide -7 to both sides

y = -3 + 3/7x

~Change order

y = 3/7x - 3

Best of Luck!

7 0
3 years ago
The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d
sleet_krkn [62]

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

and B be the event that it arrives on time

P(A) = 0.87

P(B|A) = 0.93

P(B) = ?

P(A n B) = ?

Mathematically;

P(B|A) = P(B nA)/P(A)

0.93 = 0.87/P(A)

P(A) = 0.87/0.93

P(A) = 0.935483870967742

which is 0.9355 to four decimal places

7 0
3 years ago
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