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madreJ [45]
3 years ago
8

-2√7 rational or irrational?

Mathematics
2 answers:
IgorLugansk [536]3 years ago
3 0

The sqrt(7) part makes it irrational, so the answer is irrational.

Pani-rosa [81]3 years ago
3 0

<u>Answer</u>

-2\sqrt 7 \text {is an irrational number}


<u>Explanation </u>

-2\sqrt 7 is an irrational number, an irrational number is a number that contains repeating decimals or that cannot be written as a simple fraction.

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GCF of 30 and 54 and why
statuscvo [17]
30= 2,3,5
54=2,27
GCF=1620
6 0
3 years ago
The table represents the function f(x). A 2-column table with 7 rows. The first column is labeled x with entries negative 3, neg
Lelu [443]

Answer:

9

Step-by-step explanation:

The table would look like.

x         f(x)

-3       -9

-2       -6

-1        -3

0         0

1          3

2         6

3         9

When looking at the table.

f(3)=9

5 0
3 years ago
Look at the question below.
MissTica

Answer:

I think is is 2(x+12)

Step-by-step explanation:

two times x and 12, so 2(x+12)

6 0
3 years ago
pls help me I need it I will give u 100 points and mark u brainliest pls help me. I need 3 answers 3,4,5
kari74 [83]

Answer:

<em>Question 3. Option B,</em>

<em>Question 4. Option D,</em>

<em>Question 5. Option B</em>

Step-by-step explanation:

Question 3.

If we have a table, we can note that each juice has a proportionality among one another - comparative to the number of servings. If we can figure out this proportionality, we can apply it to the servings of grapefruit juice;

8 / 16 = 1 / 2,\\4 c / 8c = 1 / 2,\\1 c / 2 c = 1 / 2

As we can tell, this " proportion " is 1 to 2. Thus, the amount of grapefruit for 16 servings is 2 * 3 = 6c -<em> Option B</em>

Question 4.

The distance Carlos biked is 24 miles, the total distance he covered is 30 miles;

24 : 30 = 4 : 5,\\4 to 5,\\4 : 5,\\4 / 5\\\\Conclusion - Option D

Question 5.

If 1 / 6 of the fruits are oranges, there must be 6 times of the other fruit. Thus, the solution is <em>Option B</em>

8 0
3 years ago
Read 2 more answers
Solve. <br> 47 + a = 60 <br><br> Enter your answer in the box. <br><br> a =
Paha777 [63]
The answer is 13
How I got this is 47-47+a=60-47
then you get a=13
I hope I helped! 
7 0
3 years ago
Read 2 more answers
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