The foreign exchange rate is a rate at which one currency is exchanged for another, and it exists because not all currencies are worth the same. In short, money of one country is worth more than money of a different country.
Well -4 - 6 is -10, but can you specify what rules you're talking about?
<span>36*7=252
21*4=48
total is $300
12 necklaces and 36 watches.</span>
Answer:
Step-by-step explanation:
Let the height of the largest triangle marked be . We can set up the following equation:
(if you're unfamiliar with trig, this is likely introduced to you as 30-60-90 triangle rules)
This height is also a leg of a 45-45-90 triangle, as marked in the diagram. From the isosceles-base-theorem, the other leg of this triangle must also be equal to . Therefore, we can use the Pythagorean theorem to solve for :
(you can also use trig or 45-45-90 triangle rules which are derived from the Pythagorean theorem)
Segment consists of two shorter segments, a left segment and a right segment. We've already found that the left segment is equal to 17. To find the right segment we can use trig, the Pythagorean theorem, or 30-60-90 triangle rules (derived from the Pythagorean theorem):
Using Pythagorean Theorem:
Therefore, we have: