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GrogVix [38]
3 years ago
12

(True or False) The set of ordered pairs {(6,4),(2,-5),(-2,4),(6,-4)} is a function

Mathematics
1 answer:
const2013 [10]3 years ago
6 0

Answer:

False

Step-by-step explanation:

The same function input (the first number in the pair) cannot have two different outputs (the second number in the pair).

(6, 4) 4 is one output.

(6, -4) -4 is another output.

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Lin is reading a 47 page book . She read the first 20 pages in 35 minutes. If she keeps reading at the same pace, how long will
Damm [24]

Answer:

It will take her 1 hour, 22 minutes, and 15 seconds.

Step-by-step explanation:

We can find how long it takes her to read one page if we take 35 divided by 20.

35/20 equals 1.75, which means it takes Lin 1.75 minutes to read 1 page.

If we multiple 1.75 times the 47 pages of the book, we get 82.25.

But, this does not mean that it takes Lin 82 minutes and 25 seconds to read the book. Since there are only 60 seconds in one minute, we must convert the .25 to seconds.

.25 is equivalent to 1/4, and 1/4 of 60 seconds is 15 seconds.

It would also look like this  \frac{1}{4} *\frac{60}{1} = \frac{60}{4} = 15

So it took Lin 82 minutes and 15 seconds to read the book.

Or it took her 1 hour, 22 minutes, and 15 seconds to read the book.

6 0
3 years ago
What percent is 52.52 million of 142 million
coldgirl [10]

Answer:

37%

Step-by-step explanation:

Given parameters:

Total number  = 142 million

Comparing number  = 52.52 million

Unknown:

What percent is the number  =?

Solution

The percentage;

           = \frac{comparing number }{total number }  x 100

          = \frac{52520000}{142000000} x 100

          = 37%

5 0
4 years ago
I’ve been stumped on this question for a while (picture included)
julsineya [31]

Answer:

Since the question is indicating to use a graphing calculator, we can assume that we would be required to graph both of the equations.

Red = \sqrt{x+2}

Blue = 3x^2-4x-1

By graphing those equations, we can determine the solution(s)

The points where the graphs intersect would be your coordinates to derive your solution

Red = (1.864, 1.966)

Blue = (-0.427, 1.254)

The solutions would be the x-value of the ordered pair, in this case,

x = 1.864 AND x = -0.427

4 0
3 years ago
Please help I give brainliest question is in the image
maria [59]

Answer: the second one

4x^2+76+32

Step-by-step explanation:

i used photomath lol

6 0
3 years ago
Complete the equation so that it has infinitely many solutions <br>1/2(4-z)​
I am Lyosha [343]

Answer:

4 - z

 —---

   2  

Step-by-step explanation:

3 0
3 years ago
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