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katovenus [111]
4 years ago
7

What is the reference angle and cosine of StartFraction 7 pi Over 6 EndFraction ?

Mathematics
2 answers:
lara31 [8.8K]4 years ago
6 0

Answer:

Reference Angle: the acute angle between the terminal arm/terminal side and the x-axis. The reference angle is always positive. In other words, the reference angle is an angle being sandwiched by the terminal side and the x-axis. It must be less than 90 degree, and always positive.

Step-by-step explanation:

Ann [662]4 years ago
3 0

EndRoot Over 2 EndFraction

StartFraction pi Over 6 EndFraction, StartFraction StartRoot 3 EndRoot Over 2 EndFraction

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How can you write 0.45 as fraction and a percentage ,please show work
Blababa [14]
To convert 0.45 to percent multiply by 100

<span>0.45 × 100 = </span>45 %

<span>Write the decimal number as a fraction
(over 1)
0.45 = 0.45 / 1

Multiplying by 1 to eliminate 2 decimal places
we multiply top and bottom by 2 10's

Numerator (N)
N = 0.45 × 10 × 10 = 45
Denominator (D)
D = 1 × 10 × 10 = 100

N / D = 45 / 100

Simplifying our fraction

= 45/100

= 9/20

</span>

7 0
3 years ago
Read 2 more answers
A number line goes from negative 5 to positive 5. Point D is at negative 4 and point E is at positive 5. A line is drawn from po
Ronch [10]

<em>Directed numbers</em> are numbers that have either a <u>positive</u> or <u>negative </u>sign, which can be shown on a <em>number line</em>. Therefore, point F is Fifteen-halves of line <em>segment</em> DE.

A <u>number line</u> is a system that can show the positions of <em>positive</em> or <em>negative</em> numbers. It has its <em>ends</em> ranging from <em>negative infinity</em> to <em>positive infinity</em>. Thus any <em>directed</em> number can be located on the line.

Directed numbers are numbers with either a <u>negative</u> or <u>positive </u>sign, which shows their direction with respect to the <em>number line.</em>

In the given question, the <u>distance</u> between points D and E is <em>9 units</em>. So that <em>dividing</em> 9 units in the ratio of 5 to 6, we have;

\frac{5}{6} x 9   = \frac{45}{6}

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Therefore, the <em>location</em> of point F, which <u>partitions</u> the directed line segment from d to E into a 5:6 ratio is    \frac{15}{2}. Thus the<em> answer</em> is <u>Fifteen-halves.</u>

For further clarifications on a number line, visit: brainly.com/question/23379455

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7 0
2 years ago
What is the slope of the line that contains the points (-1, 2) and (3, 3)?​
iren [92.7K]

Answer:

1/4

Step-by-step explanation:

Slope of a line can be found if given two points by using the formula \frac{y_2-y_1}{x_2-x_1} where (x_1,y_1) \text{ and } (x_2,y_2) are points on the line.

However, I like to line up the points vertically and subtract then put 2nd difference over 1st difference.

Like this:

(   3   ,   3   )

-(  -1   ,    2  )

---------------------

   4          1

So the slope is 1/4.

3 0
3 years ago
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Directio: Draw and label a figure for the condition.
andre [41]

Answer:

[Kindly\ find\ the\ graph\ attachment]

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