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3 years ago

Explain how to use a protractor to measure an angle

Mathematics

2 answers:

larisa [96]3 years ago

8 0

Answer:

pute the proutractor on the shaip you wanta put it on. then aline the nunbers and lies to the liees of the figgyur thingy to use the protractr. hoep thiss hehlps! yw

Step-by-step explanation:

Verdich [7]3 years ago

4 0

Answer:

How to measure an angle with a protractor:

1 Place the midpoint of the protractor on the VERTEX of the angle.

2 Line up one side of the angle with the zero line of the protractor (where you see the number 0).

3 Read the degrees where the other side crosses the number scale.

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The speed of the boat going with a current is 20 mph. When the boat goes against the current, the speed is 16 mph. Find the spee

adoni [48]

Answer:

The speed of the boat in still water is 18 mph.

The speed of the current is 2 mph

Step-by-step explanation:

Let x represent the speed of the boat in still water.

Let y represent the speed of the current.

When the boat goes against the current, the speed is 16 mph. Assuming it traveled against the current while going upstream, its total speed would be (x - y) mph. It means that

x - y = 16 (equation 1)

Going downstream, the boat averages 20 mph. Assuming it traveled with the current, its total speed would be (x + y) mph. It means that

x + y = 20 (equation 2)

Adding both equations, it becomes

2x = 36

x = 36/2

x = 18 mph

Substituting x = 18 into equation 1, it becomes

18 - y = 16

y = 18 - 16

y = 2 mph

4 0

3 years ago

Your friend Zoe is very earnest about the benefits of her special diet. She believes that having kale for breakfast every day wi

charle [14.2K]

- The best method to test Zoe's claim is an observational study, as with this method it is possible to observe if the claim presents some truth to it. Observational studies are often used in testing claims like Zoe's as they allowed to have a great access to the variable that are behind a claim of that type, and so they are also more accessible.

- The set up I would use is an observational study of a great number of people, over a long period of time, that have to have kale for breakfast every day, with a measurement of their cholesterol over the time. the great number and the long period of study assured that the variable subject of study is statistically represented in an optimal way.

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3 years ago

What is the answer to -9(4x-10)+24

Fantom [35]

Answer:

-36x+114

Step-by-step explanation:

5 0

3 years ago

The points where a graph crosses the x- and y-axis are called the _____.

Marina CMI [18]

I think it's called a coordinate plane

Sorry if I'm wrong

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4 years ago

Read 2 more answers

Graph the line with slope -3 passing through the point (3,-4)

Vinvika [58]

Given: $\textsf{Slope = -3, Passes through (3, -4)}$

Find: $\textsf{Equation in slope-intercept form}$

Solution: The first step that we need to take is to plug the given values into the point-slope formula which would help us out since we have both the slope and a point. Using that we would then distribute on the right side of the expression and then subtract 4 from both sides which would isolate y.

Plug in the values

$y - y_1 = m(x - x_1)$

$y - (-4) = -3(x - 3)$

Distribute

$y + 4 = (-3 * x) + (-3 * - 3)$

$y + 4 = -3x + 9$

Subtract 4 from both sides

$y + 4 - 4 = -3x + 9 - 4$

$y = -3x + 9 - 4$

$y = -3x + 5$

Therefore, after plugging in the values and completing the rest of the steps we were able to determine that equation of the data provided would be $y = -3x + 5$ .

7 0

2 years ago