The Ruiz Family is exchanging euros for US dollars. The exchange rate is 1 euro equals 1.35261 USD. Since the Ruiz family knows that USD are stated to the nearest hundredth of a dollar, they used the conversion ratio [1.35/ 1 euro unit]. Will this give the Ruiz family the correct exchange? Explain.

No, the Ruiz family won't get the correct exchange rate.

Step-by-step explanation:

Suppose the family has 100 euros. Using the actual exchange rate, we find they have

If we use the rate 1 euro = 1.35 USD(after rounding off), we would have

It would seem insignificant as it is small, because it is only $0.261. But, the more money they convert with this rate, the more incorrect they will be. If they exchange 1 million euros to dollar with the rounded off rate, they will loose,

So, they will get $2610 less while exchanging 1 million dollar, if they round off the exchange rate.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

7

step-by-step explanation: