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ser-zykov [4K]
3 years ago
9

6(3x+4)-4(2x-6)-8xexplain step by step​

Mathematics
2 answers:
ElenaW [278]3 years ago
6 0

Answer:

The answer is 2x+48

Step-by-step explanation:

LuckyWell [14K]3 years ago
5 0

1: Distribute

6(3x+4)-4(2x-6)-8x

18x + 24 - 4(2x-6)-8x

2: Distribute

18x + 24 - 4(2x-6)-8x

18x + 24 - 8x + 24 - 8x

3: Add the numbers

18x + 24 - 8x + 24 - 8x

18x + 48 - 8x - 8x

4: Combine like terms

18x + 48 - 8x - 8x

2x+48

Solution:

2x+48

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It takes a ship 3 hours to cover 72 km with the current and 4 hours against the current. Find the speed of the ship in still wat
earnstyle [38]
X- speed of the ship in still water
a- speed of current
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(x+a)*3=72
(x-a)*4=72

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<u>+    x-a=18
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3 years ago
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On a particular production line,the likelihood that a light bulb is defective is 5%. Ten light bulbs are randomly selected. What
KengaRu [80]

Answer:

Mean and Variance of the number of defective bulbs are 0.5 and 0.475 respectively.

Step-by-step explanation:

Consider the provided information,

Let X is the number of defective bulbs.

Ten light bulbs are randomly selected.

The likelihood that a light bulb is defective is 5%.

Therefore sample size is = n = 10

Probability of a defective bulb = p = 0.05.

Therefore, q = 1 - p = 1 - 0.05 = 0.95

Mean of binomial random variable: \mu=np

Therefore, \mu=10(0.05)=0.5

Variance of binomial random variable: \sigma^2=npq

Therefore, \sigma^2=10(0.05)(0.95)=0.475

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4 years ago
What is the value of 30^0?
ElenaW [278]

Answer:

Value is 1.

Step-by-step explanation:

To find the value of 30^0

\text{Any number raised to the power of zero} is always equal to 1, but if zero to the power 0 is not defined.

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Here,

A non-zero number = 30 ≠0

then;

by definition:

30^0 = 1

Therefore, the value of 30^0 is 1

5 0
4 years ago
Read 2 more answers
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