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omeli [17]
3 years ago
15

An observer for a radar station is located at the origin of a coordinate system. For the point given, find the bearing of an air

plane located at that point. Express the bearing using both methods. (8.0) a. 270degree; N 90degree W or S 90degree W b. 270degree; N 90degreeE or S 90degree E c. 90degree; N 90dgree E or S 90degree E d. 90degree; N 90degree W or S 90degree W
Mathematics
1 answer:
Vinvika [58]3 years ago
5 0

Answer:

as the point (8,0) lies on the x-axis (east) and the bearings are defined with respect to south or north according to the rotation as well. so here the angle is 90 and the directions are N90E or S90W

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3 years ago
Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12
BARSIC [14]

We are told that Christina collected information about the ages of the players on her softball team. The ages were 10, 12, 14, 13, 12, 11, 13, 12, 11, 12, 12, and 13. Christina wants to describe the players’ ages in an article for the school newspaper.

Since we know that range of a data is difference between the highest and lowest values of a data set. Range of our data set will be 4 (14-10). A group of different ages could have same range as Christina's data set. So range will be not a good option.

A measure of central tendencies will be better option to represent information about ages of softball team players. Mean will give the average age of softball players.

\text{Mean age of players}=\frac{10+11+11+12+12+12+12+12+13+13+13+14}{12}

\text{Mean age of players}=\frac{145}{12}=12.0833

Let us find median of data.

10,11,11,12,12,12,12,12,13,13,13,14        

\text{Median age of softball players}=\frac{12+12}{2}

\text{Median age of softball players}=\frac{24}{2}=12

We can see that average of our data is 12 years.    

Therefore, a measure of central tendency will be better choice to describe ages of softball players.      

7 0
3 years ago
What’s the sum of 20x^2-10x-30
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10(x+1)(2x−3) I think
8 0
4 years ago
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