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morpeh [17]
3 years ago
14

Solve for x. please help asap we have a test on these tomorrow and i have no idea what’s going on.

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
8 0

Answer:

X = 2

Step-by-step explanation:

As the lines are perpendicular...

90 = 43 + 2x + 7

Solve for x by making x the subject.

90 - 43 - 7 = 2x

40 = 2x

40/2 = x

20 = x

therefore, x = 2

lyudmila [28]3 years ago
3 0

Answer:

x = 20°

Step-by-step explanation:

You know the horizontal line is 180°. If the left side of the horizontal line is 90° (right angle), then the right side of the horizontal line should be 90° too. (180° - 90° = 90°)

Thus, 90° = 43° + 2x + 7°

2x = 90° - 43° - 7°

    = 40°

x = 40° ÷ 2

x = 20°

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Step-by-step explanation:

To find an equation of a line that passes through two points, we have to first find the slope between the two equation. We can do this by using the slope formula:

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Lets make (x₁, y₁) equal to (0, 10) and (x₂, y₂) equal to (3, 1). Now we plug them into the slope formula:

So the slope between the two points is -3.

From here, I would normally take one of the points given to us and plug in the point and slope into the point-slope form of a line and then simplify until we get it in slope-intercept form. But if you look carefully, the y-intercept is given to us as the point (0, 10). So we now know that the y-intercept of the line is 10. We can now take the y-intercept and the slope and plug it into the slope-intercept form of a line to get out equation:

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plug in -3 for m (the slope) and 10 for b (the y-intercept)

y = -3x + 10

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I hope you find my answer and explanation helpful. Happy studying. :)

3 0
3 years ago
What is the probability of tossing a penny and landing on heads three times in a row
lesantik [10]

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3 years ago
I WILL MARK YOU BRAINLYEST if you answer all of my problems !!!!!!!!!!!
sweet-ann [11.9K]
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2 years ago
write an equation in standard form for a line that is parallel to the line with an equation of y=3x-5 that passes through the po
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Answer:

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3 0
3 years ago
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