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Volgvan
4 years ago
14

Describe how an ordered pair represents a point on a coordinate plane.

Mathematics
1 answer:
muminat4 years ago
3 0
An ordered pair tells you how many units left and right you move (the x value) and how many units up and down you move (the y value) from the origin (where the x & y lines meet in the middle).  An ordered pair is in the form of (x, y).  Positive x values move right and negative x values move left.  Positive y values move up and negative y values move down.
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What is the correct justification for the indicated steps?
kondaur [170]

Answer:

Step C: distributive property

Step D: Tringonometric Sum Identity

Step E: Factoring

Step-by-step explanation:

7 0
3 years ago
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Which expression shows the result of applying the distributive property to 3(2x−6) ?
Firlakuza [10]
3 times 2x is 6x and 3 times negative 6 is negative 18 so the answer is b)6x-18 Hope this helps
6 0
4 years ago
Read 2 more answers
Why does it not make sense to graph f and f−1 on the same set of axes?
babymother [125]

Here you have two graphs, one -- graph of the function y=f(x) on the coordinate plane with axes x and y, another -- graph of the function x=f^{-1}(y) on the coordinate plane with axes y and x.

Actually, these graphs are graphs of the same function, only axes are changed.

It makes the sense to graph to functions  f(x) and f^{-1}(x) on the same set of axes, not graphs of the same function y=f(x) and x=f^{-1}(y) on the different set of axes.

4 0
3 years ago
In high school, some students have been confused to believe that 22/7 is already the actual value of π or an acceptable approxim
jarptica [38.1K]

Answer:

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

Step-by-step explanation:

The formula for the absolute error is:

Absolute error = |Actual Value - Measured Value|

The formula for the relative error is:

Relative error = |Absolute error/Actual value|

I am going to consider the actual value of \pi as 3.14159265359.

In the case of 22/7:

22/7 = 3.14285714286.

Absolute error = |3.14159265359 - 3.14285714286| = 0.00126448927

Relative error = 0.00126448927/3.14159265359 = 0.00040249943 = 0.04%

In the case of 355/113

355/113 = 3.14159292035

Absolute error = |3.14159265359 - 3.14159292035| = 0.00000026676

Relative error = 0.00000026676/3.14159265359 = 0.000000085 = 0.0000085%

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

5 0
4 years ago
PLease dont answer if you dont know...<br> Use the Law of Sines to find side "b" of the triangle.
alexdok [17]
Using the law of sins:

side a / sin (angle A) = side b / sin(Angle B)

Side a is opposite angle A, so from the picture we know side a = 50, angle A is 58 degrees and angle B is 48 degrees.

replace those values in the formula we get:

50 / sin(58) = b/ sin(48) 

so now we can cross multiply the 2 fractions to get:

50 * sin(48) = b*sin(58)

to get b by itself, divide both sides by sin(58) to get:

b = (50*sin(48)) / sin(58)

b = 43.82

 You may need to round the answer as needed.

4 0
4 years ago
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