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tatyana61 [14]
3 years ago
11

Ten athletes ran two races of the same length. The scatter plot shows their times. Identify each of these statements that is fal

se. Use pencil and paper. Which point on the scatter plot represents the athlete you think should win​ overall? Explain.
1. Nine of the times for the first race were at least 16 seconds.
2. Four of the times for the second race were less than 17 seconds.
3. There were three athletes who were faster in the second race than in the first.
4. There were three athletes who had the same time in both races.
5. There were two athletes whose times in the two races differed by exactly 1 second.
Race Times
10
12
14
16
18
20
10
12
14
16
18
20
Time for First Race (seconds)
Time for Second Race (seconds)



x y graph
Select each statement that is false.
A.
Statement 3
B.
Statement 4
C.
Statement 5
D.
Statement 2
E.
Statement 1
Mathematics
1 answer:
sweet [91]3 years ago
3 0

Answer:

Step-by-step explanation:

"E" is the answer

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Answer: \frac{sin (4x)}{cos(14 x)}

Step-by-step explanation:

We have the following expression:

\frac{tan(9x)-tan(5x)}{1+tan(9x)tan(5x)}

In order to work in a better way this expression, let's call \alpha=9x and  \beta=5x and rewrite:

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Simplifying:

\frac{sin(\alpha)cos (\beta)-sin(\beta)cos(\alpha)}{cos(\alpha) cos(\beta)+sin(\alpha) sin(\beta)}

According these trigonometric identities, we have:

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