The answer is 12.69, you just need to put all the groceries together!!
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
65% means 65/100, or 65 100ths.
Converting a number from a ratio/fraction, such as 65/100, just involves dividing the numerator by the denominator.
65 ÷ 100 = 0.65
Answer is 0.65
