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Lyrx [107]
2 years ago
5

Hi! 6 questions, find the slope of the line through the given points, ty! They should be practice questions

Mathematics
1 answer:
denis23 [38]2 years ago
7 0

Answer:

3. undefined (vertical line)

4. 1

7. -4

8. 3

11. undefined (vertical line)

12. -1/3

Step-by-step explanation:

You can use the slope formula to calculate the slope which is (y2-y1)/(x2-x1)

3. (-4 - (-2)) /  (6-6)  denominator is 0 here so the slope is undefined (vertical line)

4. (7 - 1) / (-2 - (-4)) = 6 / 6 = 1

7. (1 - (-7)) / (2 - 4) = 8 / -2 = -4

8. (-1 - 5) / (0 -2 ) = -6 / -2 = 3

11. (3 - 0) / (-6 - (-6)) = 3 / 0 = undefined (vertical line

12. (2 - 3) / (-5 - (-2) = 1 / -3 = -1/3

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Find the missing side length. Round your answer to the nearest tenth.
EastWind [94]

Answer:

5.545

Step-by-step explanation:

This problem can be easily solved by using the law of cosines, which relates the lengths of the sides of a triangle to the cosine of one of its angles.

in this case, the formula can be applied in the following way

a^2 = b^2  + c^2  - 2*b*c*cos(α)

Where

a,b,c are each of the sides of the triangle,

α is the angle between sides b and c

(See attached picture)

If we use the formula we get

a^2 = (9)^2 + (6)^2 - 2*(9)(6)*cos(37°)

a^2 = 81 + 36 - 86.2526

a^2 = 30.747

a = sqrt(30.747)

a = 5.545

5 0
3 years ago
Help me find x please
Sedaia [141]

Answer:

\displaystyle 13 = x

Step-by-step explanation:

All three angles in an equilateral triangle are equivalent, and they sum up to 180°, so each angle measures 60°:

60° = [8x - 44]°

+ 44° + 44°

____________

\displaystyle \frac{104°}{8} = \frac{[8x]°}{8} \\ \\ 13° = x

I am joyous to assist you anytime.

6 0
3 years ago
Explain how xy and xy are diffrent
sladkih [1.3K]

Answer:

x is the horizontal line on the middle of a graph and the y is the vertical line on the middle of a graph

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A line passes through the point (6, -2) and has a slope of 4/3 Write an equation in point-slope form for this line.​
kumpel [21]

Answer:

y = 4/3x - 10

Step-by-step explanation:

Slope: 4/3

y-intercept: -2 - (4/3)(6) = -2 - 8 = -10

5 0
2 years ago
Using v= u + at, find v, when u = 12, a = 5 and t = 7
aev [14]

Answer:

v = 47

Step-by-step explanation:

v = u + at

Plug in the values.

v = (12) + (5)(7)

Multiply 5 and 7.

v = 12 + 35

Add

v = 47

Hope this helps!

6 0
3 years ago
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