Ask question

Ask question

All categories

snow_tiger [21]

3 years ago

10

True or False: The relation {(3, 2), (1, 2), (7, –5), (11, 6), (17, –4), (13, 8)} is a function.

1 answer:

8090 [49]3 years ago

7 0

Answer:

False

Step-by-step explanation:

This is because if you have a function which is Y=2x-4 , then trying to give an example using the given points which (3,2) , here we will have Y=2 upon replacing 3 in the function cause 3 is the value of x and vice versa if we have 2 as the value of Y then x will be 3 . However,if we get the (1,2) the answer for Y will be -2 which is different from the one we have in the question hence this concludes false

You might be interested in

QveST [7]

Answer: 9 L

Step-by-step explanation:

Given

The dimension of the rectangular container is $40\times 30\times 25\ cm^3$

It is filled with $\frac{3}{5}$ of the height

Water present in the container

$\Rightarrow 40\times 30\times 25\times \dfrac{3}{5}\\\\\Rightarrow 18000\ cm^3$

Also, $1\ L=1000\ cm^3$

$\therefore 18,000\ cm^3=18\ L$

Now, half of the water is poured out

So, half is left

$\Rightarrow \dfrac{18}{2}=9\ L$

Thus, 9 L of water is left in the container

5 0

3 years ago

In which step did Viet make an error? 2 ( x − 3 ) 2 + 4 = 102 2 ( x − 3 ) 2 = 106 Step 1 ( x − 3 ) 2 = 53 Step 2 x − 3 = ± 53 St

vitfil [10]

Answer:

Step 2

Step-by-step explanation:

Given

Step 1: $2(x - 3)^2 + 4 = 102$

Step 2: $2(x - 3)^2 = 106$

Step 3: $x - 3 = \±\sqrt{53$

Step 4: $x = \±\sqrt{53} + 3$

Required

Where did Viet made an error?

The step 1 indicates the original question.

$2(x - 3)^2 + 4 = 102$

To get to step 2, we have to subtract 4 from both sides of the equation.

$2(x - 3)^2 + 4 -4= 102 - 4$

$2(x - 3)^2 = 98$

However, the above expression is different from Viet's evaluation.

<em>Hence, we can conclude that Viet made an error in step 2</em>

5 0

3 years ago

Evaluate expressions- if r=45 and t=9 what is the value of the following expression?

lions [1.4K]

The answer is D: 66
By using PEDMAS

4 0

3 years ago

Read 2 more answers

Screenshot of question below

koban [17]

Answer:

231 yd²

Step-by-step explanation:

h·b=A

17.5 · 13.2 = 231 yd²

8 0

3 years ago

Read 2 more answers

You can calculate the interest on a savings account by using this formula: interest = principal × rate × time if mary deposits $

Valentin [98]

I=prt
I=275×0.032×1
I=8.8

7 0

4 years ago