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2 years ago

Part1

Mathematics

1 answer:

Angelina_Jolie [31]2 years ago

4 0

Part 1.

The slope is found by the change in Y over the change in X.

In the picture they are finding the difference between the X and Y of each point. They have x1 - y1 over x2-y2, when it should be y2-y1 / x2 - x1.

Part 2:

Slope = Change in Y over change in X:

(4 - 6) / (0 - -2) = -2 / 2 = -1

Slope = -1

Using the point (0,4) tells you the Y-intercept, which is the Y value when x is 0. The Y intercept is added to the slope when writing the equation of a line in point slope form.

The equation is y = -x +4

Part 3:

Find two points on the line by replacing X with 0 and solving for Y and then replace Y with 0 and solve for X. This gives you the X and Y intercepts. Once you have those two points, put them on a graph and then draw a straight line through both dots.

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Find the angle sum of the irregular polygon using the formula S= 180(n-2).

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Answer:

720°

Step-by-step explanation:

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2 years ago

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Solnce55 [7]

Answer:

$x= \frac{2}{3}$

Step-by-step explanation:

Let the number be x

Given

$\frac{1}{6}x + \frac{1}{3} = \frac{2}{3}x$

Required

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$\frac{1}{6}x + \frac{1}{3} = \frac{2}{3}x$

Collect Like Terms

$\frac{1}{6}x - \frac{2}{3}x = - \frac{1}{3}$

Take LCM

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Multiply both sides by 6

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Divide both sides by -3

$\frac{-3x}{-3}= \frac{-2}{-3}$

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Hence, the number is $\frac{2}{3}$

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2 years ago

Solve for x. Show your work.

puteri [66]

So, these are actually pretty simple once you learn the equality used to solve for "x" and when to implement this method. You can use this equality to solve for a segment "x" anytime that two secant lines cutting through a circle come from the same point outside the circle.

Secant: by geometric definition is just a straight line that cuts a curve into multiple pieces.

I did one of them for you hopefully you can use my work for "a" to help you solve for "b". For a. I got x=7.

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

Allisa [31]

Answer:

Step 1

Step-by-step explanation:

Carly divided 7a by a when she should have divided 7a by 7

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2 years ago

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