Tony is standing at sea level. From his location, the angle of elevation of the top of Blue Mountain is 23°. Staying at sea leve
1 answer:
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Answer:
The correct option is C) 21.1 and 0.68
Step-by-step explanation:
Consider the provided information.
The mean composite score was 21.1 with a standard deviation of 4.8. The ACT composite score ranges from 1 to 36, with higher scores indicating greater achievement in high school.
Therefore μ = 21.1 and σ = 4.8
It is given that the sample of 50 students;
Thus, sample size ( n ) = 50
According to the central limit theorem,
Therefore
Hence, the correct option is C) 21.1 and 0.68
In the given question , we have a function given , which is
And we need to find the value of y when x=5.
So we substitute 5 for x and solve for y, that is
And on rounding to the nearest tenths, we will get
So when x=5, y=0.4
The distance of the boat on the right to the finish line is 297.29 m and the distance of the boat on the left to the finish is 294.11 m, so the boat on the left will reach the finish line faster.
<h3>How do you know which boat will reach the finish line faster? </h3>
The image shows two triangles of which we know an angle and the value of the opposite leg. Therefore, we can perform a mathematical operation to know the value of the hypotenuse of these triangles, which would be the distance of the boats to the goal as shown below.
h = hypotenuse
- Right Boat
Sen 22° =
h =
h =
h = 297,29 m
- Left boat
Sen 20° =
h =
h =
h = 294,11 m
According to the above, the distance of the boat on the left is less, so it can be inferred that this boat will reach the finish line faster.
Learn more about triangles in: brainly.com/question/2269348