Answer:
7.9km
Step-by-step explanation:
(a)See attached for the diagram representing this situation.
(b)
In Triangle ABC

Next, we determine the value of Angle B.

Finally, we find b.

The distance between the small plane and the observation tower is 7.9km.
Answer:

Step-by-step explanation:
The equation of the line with the slope
and passing through the point
is

In your case,

Hence, the equation of the line is

Answer:
10
Step-by-step explanation:
Begin with writing down your problem. For example, you want to divide 1284 by 14.
Decide on which of the numbers is the dividend, and which is the divisor. The dividend is the number that the operation is performed on - in this case, 1284. The divisor is the number that actually "does the work" - in this case, 14.
Perform the division - you can use any calculator you want. You will get a result that most probably is not an integer - in this example, 91.7142857.
Round this number down. In our example, you will get 92.
Multiply the number you obtained in the previous step by the divisor. In our case, 92 * 14 = 1294.
Subtract the number from the previous step from your dividend to get the remainder. 1284 - 1294 = 10.
Answer:
2 books
Step-by-step explanation:
If 7 books= 1 box
Then 30 books= 30÷7= 4 boxes with a remainder of 2 books
Therefore books left over= 2 books
<h3>Answer: 71</h3>
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Explanation:
Multiply the values in the second and third columns. Do this row by row.
Row1: 50*55 = 2750
Row2: 75*32 = 2400
Row3: 150*13 = 1950
Add up the products to get 2750+2400+1950 = 7100
Then divide this by the total frequency 55+32+13 = 100 to get 7100/100 = 71