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taurus [48]
3 years ago
5

Michelle plans to make some purchases online this month and is contemplating whether to use her credit card or debit card. The b

est advice for Michelle would be to use her _____.
a. debit card because if her debit card number is stolen online, she will not be liable for any unauthorized charges
b. credit card because if she cannot pay the balance in full, the total cost of borrowing will be lower with a credit card
c. credit card because if her credit card number is stolen online, she will not be liable for more than $50 of unauthorized charges
d. debit card because if she does not have enough money in her account balance, she can pay the cost off over time
Mathematics
2 answers:
Ierofanga [76]3 years ago
4 0

Answer:

Option A.

Step-by-step explanation:

Michelle plans to make some purchases online this month and is contemplating whether to use her credit card or debit card. The best advice for Michelle would be to use her - debit card because if her debit card number is stolen online, she will not be liable for any unauthorized charges.

Under the federal Electronic Fund Transfer Act, one has to pay nothing if there is a loss or theft of the card and he reports immediately and the card has not been used.

Wittaler [7]3 years ago
3 0
The correct answer would be A. Hope this helps :)
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Question 5 and 6 please help me
sp2606 [1]

Problem 5

The function is continuous for the given domain x \ge 6

This is because y = (-5/6)x+5 is itself continuous, and any interval subset of this function is also continuous. We can plug in any real number that is equal to 6 or larger, and get some y output. If we plugged in x = 6, then we'd get

y = (-5/6)x+5

y = (-5/6)*6 + 5

y = -5+5

y = 0

This is the largest y value possible. Why? Because y = (-5/6)x+5 has a negative slope, so the graph is going downhill as you read it from left to right. As x gets bigger, y gets smaller. The smallest x value allowed in the domain produces the largest y value in the range. There is no smallest y value as the y values keep going down forever.

The range is therefore y \le 0

In interval notation, you can write the range as (-\infty, 0]. The square bracket indicates "include this endpoint as part of the range".

======================================================

Problem 6

The function is discrete for this given domain. The domain itself is a discrete list of values. We cannot plug in values between say 0 and 2. We can only substitute one of those values from the list given. Consequently, the y values will also be a list, and not an interval like problem 5 had.

-----------

If you plugged in x = -4, then you should get...

y = (-1/2)*(-4)+2

y = 2+2

y = 4

So the input x = -4 lead the output y = 4

Repeat for x = -2

y = (-1/2)x+2

y = (-1/2)*(-2)+2

y = 1+2

y = 3

and the same for x = 0 as well

y = (-1/2)x+2

y = (-1/2)*0 + 2

y = 0 + 2

y = 2

and x = 2 also

y = (-1/2)x+2

y = (-1/2)*2 + 2

y = -1+2

y = 1

Finally, plug in x = 4

y = (-1/2)x+2

y = (-1/2)*4+2

y = -2+2

y = 0

---------------

If we plugged each of these x values {-4, -2, 0, 2, 4} one at a time into the equation y = (-1/2)x+2, then we get this list of values {4, 3, 2, 1, 0}

Sorting the values from smallest to largest, we have this range {0, 1, 2, 3, 4}

3 0
2 years ago
For the function f(x) = -2x?, if the domain is {-3, 0, 3}, find the range.<br> =-
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Answer:

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Consider an algorithm that uses only assignment statements that replaces the quadruple (w, x, y, z) with (x, y, z, w). What is t
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Answer:

The minimum number of assignment statements needed is 5

Step-by-step explanation:

To write the algorithm, we apply the strategy of interchanging the values of variables in the assignment statements.

Assume "tmp" is the new variable, let assign tmp to w

The algorithm is:

Procedure exchange (w,x,y,z: integers)

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end

From the algorithm, it is obvious that there will be a minimum of 5 assignment statements needed.

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