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lakkis [162]
3 years ago
10

What are two possible measures of the angle below? On a coordinate plane, 2 rays form an angle. One ray sits on the x-axis in qu

adrant 1 and another sits on the y-axis between quadrants 3 and 4. –90° and 630° –45° and 630° –90° and 225° –45° and 225°

Mathematics
2 answers:
Fiesta28 [93]3 years ago
6 0

Answer:

  –90° and 630°

Step-by-step explanation:

The described angle will be -90° plus any integer multiple of 360°. Possible values for the angle are ...

  -90° and 630°

_____

Angles are conventionally measured counterclockwise from the positive x-axis. The angle shown in the attachment is measured clockwise, so represents a <em>negative</em> 90° angle.

kaheart [24]3 years ago
5 0

Answer:

b

Step-by-step explanation:

b

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Answer:

The answer is "70.38".

Step-by-step explanation:

Given:

Speed\ \ (mph) \ \ \ \ \ \  \ \ \ \ \  \ \ \ \ Cumulative \ \ Frequency\\\\50-54\ \ \ \ \ \  \ \ \ \ \  \ \ \ \ \ \ \  \ \ \ \ \ 2\\\\55-59\ \ \ \ \ \  \ \ \ \ \  \ \ \ \ \ \ \  \ \ \ \ \  6\\\\60-64\ \ \ \ \ \  \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \  \ 11\\\\65-69\ \ \ \ \ \  \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \ \ 21\\\\70-74 \ \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 30\\\\75-79 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \  \ \ \ \  \ 35\\\\

solution:

Interval \ \ \ \ \ \ \   X\ \ \ \ \ \ \ F \ \ \ \ \ \ \ fX\\\\

50-54 \ \ \ \ \ \ \ 52 \ \ \ \ \ \ \ 2 \ \ \ \ \ \ \ \ \ 104 \\\\55-59 \ \ \ \ \ \ \ 57 \ \ \ \ \ \ \ 6\ \ \ \ \ \ \ \ \ 342  \\\\60-64 \ \ \ \ \ \ \ 62 \ \ \ \ \ \ \  11 \ \ \ \ \ \ \ \ 682 \\\\65-69\ \ \ \ \ \ \ 67 \ \ \ \ \ \ \ 21\ \ \ \ \ \ \ 1407 \\\\70-74\ \ \ \ \ \ \ 72 \ \ \ \ \ \ \  30 \ \ \ \ \ \ \  2160\\\\75-79 \ \ \ \ \ \ \ 77 \ \ \ \ \ \ \  35\ \ \ \ \ \ \ 2695 \\\\

Total                      105  \ \ \ \ \ \ \  7390

\text{mean speed}= \frac{fX}{F}

                  = \frac{7390}{105}\\\\=70.38

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