Answer:
D
Step-by-step explanation:
If you add 0 to anything, you do not have anything new when you are finished. A is an identity.
When you multiply 1 times anything, you do not get anything new. B is an identity
When you switch the order of two numbers and they are not affected by signs, then you are using the commutative property of addition. Nothing changes. C is an identity.
D is the problem child. Nothing I can think of right now will not change will you add 1 to it. If you can think of something that doesn't change when you add one to it, please put it in the comments. Otherwise, D is not an identity.
Answer:
Currency exchange rates fluctuations pose budget uncertainty risk for future travellers. A solution to this is Forward Exchange rate markets.
Step-by-step explanation:
Currency Exchange rate is the rate at which two currencies can be exchanged for each other, it is the price of one currency in terms of other.
The currency exchange rates are dynamic, fluctuating based on demand & supply of currencies in foreign exchange markets. This uncertainty in currency rates is not good for foreign travellers, for making later plans. It might disturb their entire allotted budget.
So, they should purchase foreign exchange on Forward Exchange Rate. This rate depicts agreement for exchange of currencies, at pre-determined exchange rate, at a specific date. Buying foreign exchange from Forward markets will protect travellers from Forex volatilities.
Answer:
Step-by-step explanation:
On the return trip from the beach, you pedal hard for the first ten minutes and cover 4 miles.
Speed = distance covered/time taken
This means that your speed for the first 4 miles would be
4/10 = 0.4 miles per minute
Tired, you slow down and cover the last 6 miles in 36 minutes. This means that your speed for the last 6 miles would be
6/36 = 0.17 miles per minute
Therefore, your average speed for the return trip would be
(0.4 + 0.17)/2
= 0.285 miles per minute
The correct answer is 8
Because
In triangle ORB
OR=(OB^2-RB^2)^1/2
OR=(17^2-15^2)^1/2
OR=(289-225)^1/2
OR=(64)^1/2
OR=8
RB=AB/2 so I kept its value 15 and ^1/2 refers to square root
