MATHEMATICS HIGH SCHOOL

Write an equation in the form of y=mx for the proportional relationship that passes through the points (2, -15) and (6, -45).

Answers

Answer 1
Answer:

Answer:

Answer will be :

Y= -15/2x

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Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up to 45 m/s. If it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train? (Round your answer to the nearest whole number.)A) 4 m/s2 B) 5 m/s2 C) 6 m/s2 D) 7 m/s2

The diagonal of a square measures 32 meters. what is the area of the square?

Answers

512 So take the length halve it then square it and multiply by 2. Hope that helps

Which measurement is equivalent to 4221 cm3?A.
4221 L

B.
42.21 L

C.
4.221 L

D.
0.4221 L

Answers

If you would like to know which measurement is equivalent to 4221 cm^3, you can calculate this using the following steps:

1 cm^3 = 1 mL

4221 cm^3 = 4221 mL

1 mL = 0.001 L

4221 mL = 4.221 L

The correct result would be C. 4.221 L.

Show that the area of a square A inscribed in a circle with radius r is A=2r square​

Answers

Answer:

see below and see image.

Step-by-step explanation:

"inscribed" means the four corners (vertices) of the square are on the circle.

The diagonal of the square is the diameter of the circle. Use special right triangles or pythagorean thm to find the side length of the square in terms of r. Use Area formula for a square:

A = s^2 OR s×s

see image.

Which expression is equivalent to 21 + 49?A 7(3 + 49)

B 7(3 + 7)

C 7(14 + 42)

D 7(14 + 49)

Answers

It would be the second choice, B. 7(3+7) because when you distribute, you get 21+49, because 7x3=21 and 7x7=49.
the answer would be b because 3+7 is 10 and multiple that by 7 is 70. and 20 plus 49 is 70

Payton collected data to show the relationship between the number of hours he practices and the number of errors he makes when playing a new piece of music. The table shows his data. A 2-row table with 9 columns. The first row is labeled number of hours with entries 1, 2, 3, 4, 5, 6, 7, 8. The second row is labeled number of errors with entries 36, 34, 30, 31, 23, 16, 11, 5. Which is the approximate slope of the line of best fit for the data? –5.5 –4.5 –2.0 –1.0

Answers

The approximate value of the line of best fit which is the ratio of the change in y and the change in x axis from the options given is -4.5.

The slope of the line of best fit can be determined using the following pair of points :

(1, 36) and (8, 5)

x1 = 1 ; x2 = 8; y1 = 36 ; y2 = 5

The slope is defined thus :

  • Slope = (y2 - y1) ÷ (x2 - x1)

Substituting the values into the equation :

Slope = (5 - 36) ÷ (8 - 1)

Slope = -31 ÷ 7

Slope = - 4.428

Therefore, the nearest option from the options given is - 4.5. Hence, the approximate value of slope the best fit line is - 4.5

Learn more :brainly.com/question/18904995

Answer: -4.5

Step-by-step explanation: Trust me on this :)

A line passes through point (-2, 5) and has a slope of 2/3. Points A(x, 3) and B(-2, y) lie on the line. the value of x is ___, the value of y is ___.

Answers

Use the equation y = mx +c
y = 2/3x +c              Substitute the slope (m) in
5 = 2/3(-2) +c          Substitute the point (-2,5)
5 = -4/3 +c               Make C the subject
c = 19/3

y = 2/3x + 19/3        This is the equation of the line.

Next you start subbing the points A and B in separately, using the same equation.

Subbing A(x, 3)
3       = 2/3x + 19/3         Make x the subject to find it.
-10/3 = 2/3x
     -5 = x

The point A is (-5,3)

Subbing B(-2, y)
y = 2/3(-2) + 19/3           y is already the subject and you just solve it
   = -4/3 + 19/3
y = 5

The point B is (-2, 5)

I hope this helped you, I have also attached a photo of the written work! I'm also sorry if the answer isn't correct... >-<

Answer:

(x) = -5 (y) = 5
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