Answer:
option 2
Step-by-step explanation:
The problem can be solved using Pythagoras' identity for a right triangle.
The angle between due East and due North is 90°
The solution here involves using the Cosine rule.
let x be the direct distance between house and office, then
x² = 17² + 21² - 2(17)(21)cos90° → option 2
Note that since cos90° = 0 the equation reduces to
x² = 17² + 21² ← Pythagoras' identity
Hmm....
I know that the first answer is a coin, but I'm not too sure about the second one.
The mean of a data set is equal to the sum of the set of numbers divided by how many numbers are in the set.
Start by adding the numbers to get 30.
Now, divide by the number of numbers in the set.
So we have 30 ÷ 6 which is 5.
So the mean is 5.
Answer:
the answer is d-2688
Step-by-step explanation:
according to my calculator ! hope this helps
