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Vinvika [58]
2 years ago
11

What is a double angle identity to find the exact value of cos?

Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
8 0

find three consecutive number whose sum shall equal 45

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Use the line plot above to answer all 4 questions. Label your responses (a), (b), (c), and (d). When asked to explain you must u
mojhsa [17]
A) it is left skewed
B) the median is 5
C) the mean is 5.15
D) the mean would be more affected (a change of 1.05 versus a change of 0.5).

The majority of the data is to the right of the graph; this means it is left skewed.

To find the median, write all of the data values out:
2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7

The middle value is 5.

We find the sum of this set of values and divide by 13, the number of data points, to find the mean:
2+3+4+4+5+5+5+6+6+6+7+7+7 = 67/13 = 5.15

If we added an additional data value at 20, the new median would be 5.5.  The new mean would be (67+20)/14 = 6.2.  The mean changes more than the median.
4 0
3 years ago
Pls help, I don’t understand how to do this
MAVERICK [17]

Answer:

5 parts are shaded and 4 parts are white so:

There are 9 parts all together.

We can then form ratio's of the white areas and the shaded areas:

White Area Ratio =

\frac{4}{9}

Shaded Area Ratio =

\frac{5}{9}

Let the area of sqaure be equated to x, which means let the entire area of the square equal to x:

x = Area of whole square

Now we can form an equation :

\frac{5}{9} x = 165

So now we just need to solve for x:

x = \frac{165}{ \frac{5}{9} }

x = 297

The area of the square is:

297 {cm}^{2}

4 0
3 years ago
Read 2 more answers
Solve for X. *<br> (1 Point)<br> x + 70<br> 76°<br> 410
Yuki888 [10]

Answer:

x = -7

Step-by-step explanation:

41 + 76 + x + 70 = 180

x + 187 = 180

x = 180 - 187

x = -7

7 0
2 years ago
Read 2 more answers
A. 4x^5+3x+2<br> B. 4x^2+3x+2x^5<br> C. 4x^5+3+2/x^5<br> D. 18x^5+12x+6
aalyn [17]
The answer is C. 4x^5 + 3 + 2/x^5
3 0
3 years ago
If f(x) = 2x and g(x) = x - 3, what is the value of f(g(5))?
Vesna [10]

Answer:

g(5)=5-3=2

f(2)=2×2=4

7 0
3 years ago
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