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Rainbow [258]
4 years ago
12

Which ordered pair could be removed so that the set of

Mathematics
2 answers:
Ket [755]4 years ago
4 0

The answer is (-3,2) because when it’s present in the graph the graph would not pass the vertical line test.

Another way to think about it is that -3 (input) has more than one output.

Margaret [11]4 years ago
4 0

Answer:

The answer is (-3, 2)

Step-by-step explanation:

Let's define the two sets

A = {4, -3, 3, 1} and B = {-2, 2, 4, 1 -3}, so that the set of ordered pairs is a function , we should have that to every element from the first set (in this case A) corresponds (or is associate to) an element (and only one element) from the second set (in this case B). But we have that the element -3 in the set A (the domain) is related to the elements 2 and -3 which belong to the set B (the codomain), this in not allowed by the definition of function. So in order to the set of ordered pairs is a function we should remove the pair (-3, 2).

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3x + 5y= -5 in standard form
melomori [17]

Answer:

y= \frac{3}{5} x-1-

Step-by-step explanation:

5 0
3 years ago
A customer buys a different book that has an original selling price of $38. The book is discounted 25%. The customer must pay a
Marina CMI [18]

Answer:

$30.21

Step-by-step explanation:

100% -25%= 75%

Discounted price of the book

= 75% ×$38

= $28.50

Since the customer must pay an additional 6% of the discounted price,

percentage of discounted price paid

= 100% +6%

= 106%

Total amount paid

= 106% × $28.50

= $30.21

_________________________________

Alternative working:

Original selling price= $38

Since the book is discounted 25%,

100% ----- $38

1% ----- $0.38

75% ----- 75 ×$0.38= $28.50

Since the sales tax is based on the discounted price, we let the discounted price be 100%.

100% ----- $28.50

1% ----- $0.285

106% ----- 106 ×$0.285= $30.21

∴ The total amount the customer pays for the discounted book is $30.21.

7 0
3 years ago
What is the slope of the line?
PilotLPTM [1.2K]
The slope of the line is 1/3
5 0
3 years ago
Read 2 more answers
If f(x)= 3x-1/4x+2 find f(x-1/ x+2)
Basile [38]

Answer:

The value of this new equation would be (2x - 5)/6x.

Step-by-step explanation:

In order to find the value of this equation, we need to take the original equation and replace every x with (x - 1/x+2).

f(x)= 3x - 1/4x + 2

f(x)= [3(x - 1/x+2) - 1]/[4(x - 1/x+2) + 2]

f(x) = [(3x - 3/x + 2) - (x + 2/x + 2)]/[(4x - 4/x + 2) + (2x + 4/x + 2)]

f(x) = (2x - 5/x+2)/(6x/x + 2)

f(x) = (2x - 5)/6x

5 0
3 years ago
Several different bus routes stop at the corner of Second St. and Lincoln Ave. A Wilkenson bus arrives every 21 minutes and a Ha
Olin [163]

Answer:

Both buses will arrive at the stop at 6:52 AM

Step-by-step explanation:

Wilkenson Bus = Arrives every 21 minutes

Harris Road Bus = Arrives every 15 minutes

Let's find the Least Common Multiple (LCM) of 21 and 15. LCM is found, listing the prime factors of each numbers and then multiplying each factor the greatest number of times it occurs in either numbers:

LCM 21 = 3 × 7

LCM 15 = 3 × 5

LCM (21 , 15) = 3 × 7 × 5  = 105

In 105 minutes both buses will arrive at the same time again

105 minutes = 1 h 45 min

5:07 AM + 1h 45 min = 6:52 AM

3 0
3 years ago
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