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slavikrds [6]
2 years ago
9

Find the median: 1.4, 2.6, 1.8, 0.7, 1.9, 2.4, 2.1​

Mathematics
1 answer:
hodyreva [135]2 years ago
6 0

Answer:

1.9

Step-by-step explanation:

First, we have to put them in order: 0.7, 1.4, 1.8, 1.9, 2.1, 2.4, 2.6. The middle one is 1.9.

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Nvmmmmmmmmmmmmmmmmmmmm
Darya [45]

Answer:

I'll go up to 5 on this table

Step-by-step explanation:

1.  (1, 36)

2. (2, 48)

3. (3, 60)

4. (4, 72)

5. (5, 84)

6 0
3 years ago
Daniel says that when the irrational number 7√3 is multiplied by any rational number, the product is always an irrational number
jeka94

Answer: 0

============================================

Explanation:

When we multiply 0 by any number, we get 0 as a result

x*0 = 0

0*x = 0

for any number x.

The number 0 is rational since we can write it as a fraction of two integers

0 = 0/1

If Daniel were to correct his statement to say "multiply by any <u>nonzero</u> rational number", then his statement would be correct that the result is irrational.

----------------------------------------------

Extra info:

Here's a proof showing why Daniel's claim is correct if we consider nonzero rational numbers

Let p be a nonzero rational number, so p = a/b for integers a,b where neither a or b are zero

Let q be an irrational number. We cannot write q as a ratio of two integers

The claim is that p*q is irrational. For now let's assume the opposite. So assume p*q is rational. This means p*q = r/s for integers r,s

This would be the same as (a/b)*q = r/s which solves to q = (r/s)*(b/a) = (rb)/(sa) making q rational, but that contradicts the fact we made q irrational earlier.

Therefore, the assumption p*q is rational cannot be the case, and p*q must be irrational.

7 0
2 years ago
2. The length of XZ is 28 units. If XY = 2x + 2 and YZ = 9x – 7, what are the lengths of XY and
Novosadov [1.4K]

Answer:

XY = 8 and YZ = 20

Step-by-step explanation:

If XY and YZ are on the one line, we can write

XY + YZ = 28

(2x+2) + (9x - 7) = 28

2x+2 + 9x - 7 = 28

11x - 5 = 28

11x = 33

x = 3

XY = 2x+2 = 2*3 + 2 = 8

YZ = 9x - 7 = 9*3 - 7 = 27 - 7 = 20

8 0
2 years ago
What is the simplest form of the expression?
Vitek1552 [10]
2a^3b^2(cube root of) 4a
6 0
3 years ago
Kaylee is decorating a ballroom ceiling with garland. If the rectangular ceiling is 20 meters by 48 meters, how much garland wil
Vitek1552 [10]

Answer:

960

Step-by-step explanation:

7 0
2 years ago
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