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Lady bird [3.3K]
3 years ago
9

The sine of 49° is equal to the cosine of what angle?

Mathematics
1 answer:
Digiron [165]3 years ago
6 0
Sinα=cos(90-α)  this is an identity which you need to know...

in this case:

sin49°=cos41°
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For any ratio, the second quantity in the ratio by the ratio value to get the first quantity.
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Suppose you have a binomial distribution with n = 27 and p = 0.6. find p(8 ≤ x ≤ 11).
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The answer appears to be 3.335%

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3 years ago
Are the graphs of the equations parallel, perpendicular, or neither?x -3y = 6 and x - 3y = 9
seraphim [82]

The equation of a line in Slope-Intercept form, is:

y=mx+b

Where "m" is the slope of the line and "b" is the y-intercept.

By definition:

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For this case you need to rewrite the equations given in the exercise in Slope-Intercept form by solving for "y".

- Line #1:

\begin{gathered} x-3y=6 \\ -3y=-x+6 \\ y=\frac{-x}{-3}+(\frac{6}{-3}) \\  \\ y=\frac{x}{3}-2 \end{gathered}

You can identify that:

\begin{gathered} m_1=\frac{1}{3} \\  \\ b_1=-2 \end{gathered}

- Line #2:

\begin{gathered} x-3y=9​ \\ -3y=-x+9 \\ y=\frac{-x}{-3}+(\frac{9}{-3}) \\  \\ y=\frac{x}{3}-3 \end{gathered}

You can identify that:

\begin{gathered} m_2=\frac{1}{3} \\  \\ b_2=-3_{}_{} \end{gathered}

Therefore, since:

\begin{gathered} m_1=m_2 \\ b_1\ne b_2 \end{gathered}

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3 0
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jekas [21]

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What do you think of that L?

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vichka [17]
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Explanation:

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10: 1, 2, 5, 10

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2: 1, 2

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Then we get rid of the duplicate:

Plus or minus [1, 1/2, 2, 5, 5/2, 10]

3 0
3 years ago
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