3 years ago

Simply 2 x b x b x b x 4

2 answers:

5 0

2×4=8
b×b×b= b^3
so putting them together would be
8×b^3

3 0

2 × b × b × b × 4
= 2 × 4 × b × b × b
= 8b^3

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umka2103 [35]

The new mean is 66.09

<u>Explanation:</u>

Mean weight of 20 students = 65kg

One student with 88kg entered the room.

New mean = ?

$\frac{x_1+x_2+....+x_2_0}{20} = 65$

$\frac{x_1+x_2+....+x_2_0 + 88}{21} = ?$

The above equation can further be written as:

$x_1 + x_2 +....+x_2_0 = 65 X 20\\\\x_1 + x_2 +....+x_2_0 = 1300$

New mean = $\frac{1300 + 88}{21}$

= 66.09

Therefore, the new mean is 66.09

6 0

3 years ago

lara31 [8.8K]

Ooooppppppp— homie not gettin nun at home I see

8 0

3 years ago

Aleks04 [339]

The second one is true

4 0

3 years ago

krek1111 [17]

20 is the answer
I hope this help

4 0

3 years ago

klemol [59]

For this, all you need to do is subtract 2m on both sides, and your answer will be: -1 = m

5 0

3 years ago