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Alexeev081 [22]
3 years ago
11

An image of a right triangle is shown with an angle labeled x. If tan x° = 11 divided by r and cos x° = r divided by s, what is

the value of sin x°?
Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

sin(x)=\frac{11}{s}

Step-by-step explanation:

we know that

In a right triangle

the tangent of an angle is equal to divide the opposite side of the angle by the adjacent side of the angle

the function cosine of an angle is equal to divide the adjacent side of the angle by the hypotenuse

the function sine of an angle is equal to divide the opposite side of the angle by the hypotenuse

so

<u>In this problem we have</u>

tan(x)=\frac{11}{r}

the opposite side angle x is equal to 11\ units

the adjacent side angle x is equal to r\ units

cos(x)=\frac{r}{s}

the adjacent side angle x is equal to r\ units

the hypotenuse is equal to s\ units

Hence

sin(x)=\frac{11}{s}


Natali [406]3 years ago
6 0
Sin x = 11/s because it’s opposite/hypotenuse.
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1st, 4th and 6th statements are true.

Step-by-step explanation:

We have been given two dot-plots and we are asked to select all the true statements about given dot plots.

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2. The mean of data set 1 is equal to the mean of data set 2.

Since mean of data set 1 is greater than mean of data set 2, therefore, 2nd statement is false.

3. The median of data set 1 is greater than the median of data set 2.

Since data set 1 has 19 data points, so median of data set 1 will be value of 10th data set, that is 2.

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\text{Median of data set 2}=\frac{2+2}{2}

\text{Median of data set 2}=\frac{4}{2}=2

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4. The median of data set 1 is equal to the median of data set 2.

Since both data set's median is 2, therefore, 4th statement is true.

5. The standard deviation of data set 1 is smaller than the standard deviation of data set 2.

Using online SD calculator we get SD of data set 1 is 1.422 and SD of data set 2 is 0.936. Since 1.422 is greater than 0.936, therefore, 5th statement is false.

6. The data sets have the same interquartile range.


Q_1\text{ of data set 1}=1

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Q_3\text{ of data set 2}=3

\text{IQR of data set 2}=3-1=2

Since both data set's IQR is 2, therefore, 6th statement is true.

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