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2 years ago

I need help finding the answers

Mathematics

1 answer:

Stells [14]2 years ago

5 0

Answer:

Both B and C are your answers.

Step-by-step explanation:

Well let’s use process of elimination.

2(b+3c)= 2b+6c

A. 3(b+2c)= 3b+6c, so A is not an answer

B. (b+3c)+(b+3c)= 2b+6c, so B is an answer

C. 2(b)+2(3c)= 2b+6c, so C is an answer

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The difference between two times six and five

Effectus [21]

Answer:

The difference between 2 × 6 and 2 × 5 is ...

2 × 5 = 10

And,

2 × 6 = 12

So if you subtract 12 - 10

= 2

Therefor, the difference is by 2

* Hopefully this helps:) Mark me the brainliest:)!!

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Have a good day :)!!

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2 years ago

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KIM [24]

Answer:

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Step-by-step explanation:

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2 years ago

Subtract 1/8 - 1/4 - 1/2.

Ivan

Answer:

-5/8

Step-by-step explanation:

First find the least common denominator. It is 8.

1/8- 2/8- 4/8

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2 years ago

Read 2 more answers

What divided by 4 equals 9/4 <br> ( 9/4= Divided by 4 )

Ann [662]

Answer

16/9

Step-by-step explanation:

I don't know if this is right or not and I'm sry if its wrong

but 16/9 divided by 4 = 9/4

5 0

1 year ago

A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 ki

shepuryov [24]

Answer

given,

mean = 12 Kg

standard deviation = 0.5 Kg

assume the observed statistic is = 11.1

now, $\bar{X}=11.1 , \mu = 12 , \sigma = 0.5$

assuming the number of sample = 4

n = 4

Hypothesis test:

H₀ : μ≥ 12

Ha : μ < 12

now,

significant level α = 0.05

$z* = \dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$z* = \dfrac{11.1-12}{\dfrac{0.5}{\sqrt{4}}}$

z* = -3.60

Test statistics, Z* = -3.60

P-value

P(Z<-3.60) = 0.002 (from z- table)

P- value = 0.002

now,

reject the value of H₀ when P-value < α

0.002 < 0.05

since, it is less P-value < α , we have to reject the null hypothesis

5 0

2 years ago