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hodyreva [135]
4 years ago
13

Which number is not irrational? A. 20 B. 127 c. 125 D. V50

Mathematics
1 answer:
Tju [1.3M]4 years ago
7 0

Answer:

A. A rational number gives you a remender when you divide it through by let say an even number 2.so irrational gives you no remender, hence A as an answer.

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If c(x)=4x-2 and d(x)=x^2+5 , what is (c o d) (x)
Nookie1986 [14]

Answer:

4x² + 18

Step-by-step explanation:

note that (c ○ d )(x) = c(d(x))

To evaluate substitute x = d(x) into c(x), that is

c(d(x))

= c(x² + 5)

= 4(x² + 5) - 2

= 4x² + 20 - 2

= 4x² + 18

3 0
3 years ago
Each of 8 students reported the number of movies they saw in the past year. This is what they reported:
elena-14-01-66 [18.8K]

Answer:

10.75

11

Step-by-step explanation:

the mean is the average, so add up all of the values and divide by 8 because there are 8 values :

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the median is the middle value when the numbers are written in ascending or descending order :

4, 7, 11, 11, 11, 11, 14, 17

we can cross out the values on the ends, to get to the middle. if we do this, we are left with 11, 11

find the average of these numbers :

which is 11.

3 0
3 years ago
Read 2 more answers
Helppppppppppppppppppppp!!!!!!!!!1
vitfil [10]

Answer: I need help too

Step-by-step explanation:

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6 0
3 years ago
Expanded -8(-2x-5)<br> please give answer
nika2105 [10]

Answer:

-80

Step-by-step explanation:

We have to do the parentheses first because it's part of PEDMAS.

-2x-5= 10

Next, we take 10 times -8

-8 x 10= -80

There you go! Hope this helps!

8 0
3 years ago
Read 2 more answers
What the answer is ansjjfjcjcjjcjcjc
alukav5142 [94]
The answer is 75! Explanation: Use the distance formula:)
8 0
3 years ago
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