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MissTica
3 years ago
14

Which relation is a function?

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer: b

Step-by-step explanation:

You can determine which is a function by looking at the x values. If an x value repeats, it is not a function. In A, the x variable 2 repeats so it is not a function. In C, the x variable 5 repeats. In D, the x variable -5 repeats. The only answer choice where none of the x values are the same is B, so the answer is B. Hope this helps!

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Solve for A R=x(A+B)
julia-pushkina [17]
R=x(A+B)
divide both sides by x
R/x=A+B
minus B both sides
(R/x)-B=A
A=(R/x)-B
5 0
3 years ago
Calvin’s credit card computes finance charges using the daily balance method. his card has a billing cycle of 30 days and an apr
Alenkasestr [34]

The amount of calvin’s starting balance for the next month will be C. $625.91.

<h3>How to calculate the amount?</h3>

From the information given, the monthly percentage rate will be:

= 14.75/12

= 1.22%

Therefore, the amount of calvin’s starting balance for the next month will be $625.91.

In conclusion, the correct option is C.

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5 0
2 years ago
9) A bookstore sold 15 books in 5 days. At
Alla [95]
1. Find the unit rate

15 books divided by 5 days = 3 books sold per day.

Since we are looking for how many days it would take the store to sell 21 bucks, we could do 21 (amount of books) divided by 3 (how much books is sold in a day).

Therefore, it will take a week / 7 days to sell 21 books.
8 0
2 years ago
Convert 1.51 to a fraction
SpyIntel [72]
It would be 151/100 it ant be symplified anymore so
5 0
3 years ago
Read 2 more answers
Help needed pls
Licemer1 [7]

The area of rectangle ABCD can be expressed in simplified form as: 8y^2 - 10y.

<h3>How to Calculate the Area of a Rectangle?</h3>

The area of a rectangle is calculated using:

Area = (length)(height).

We are given the following:

Length of rectangle ABCD = side DC = 4y - 5

Height of rectangle ABCD = side AD = 2y

The area of rectangle ABCD = (length)(height) = (4y - 5)(2y).

Expand the expression

The area of rectangle ABCD = 2y(4y) - 2y(5) [distributive property of multiplication]

The area of rectangle ABCD = 8y^2 - 10y

Thus, the area of rectangle ABCD can be expressed in simplified form as: 8y^2 - 10y.

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5 0
2 years ago
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