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3 years ago

MAYDAY MAYDAY I NEED HELP FAST!!!!!!!!!!!!!! YOU WILL BE THE BRAINIEST!!!!!!!!!

Mathematics

2 answers:

adell [148]3 years ago

8 0

Yes because 2/9 is equal to 12/56 so if you do 2/9 times 6/6 you would get 12/56. YUR WELCOME NO PROBS

Vadim26 [7]3 years ago

3 0

No it simplifies down to 3/14 which is not equal to 2/9

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Computers from a particular company are found to last on average for 24 months without any hardware malfunction with a standard

vodomira [7]

Answer:

At least 68% of observations lie between 22 and 26 months.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 24

Standard deviation = 2

22 = 24 - 2

22 is one standard deviation below the mean

26 = 24 + 2

26 is one standard deviation above the mean.

So, by the empirical rule, at least 68% of observations lie between 22 and 26 months.

8 0

3 years ago

Match the phenomenal expression on the left with the simplified version on the right

nalin [4]

Given the polynomial expression:

(y + 5)²

(y - 5)(y + 5)

Let's simplify each of the given expression:

a.) (y + 5)²

The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.

$\text{ (a+b)}^2\text{ = }a^2\text{ + 2ab + }b^2$

We get,

$\mleft(y+5\mright)^2=(y)^2+2(y)(5)+(5)^2$ $(y+5)^2=y^2+10y+25$

b.) (y - 5)(y + 5)

To be able to simplify the following expression. We will be using the formula for the difference of two squares.

$(a+b)(a-b)=a^2-b^2$

We get,

$\mleft(y-5\mright)\mleft(y+5\mright)=(y)^2-(5)^2$ $(y-5)(y+5)=y^2-25^{}$

8 0

1 year ago

Which of the following inequalities are true?

yarga [219]

Answer:

i think its B or D sorry if I'm wrong

3 0

2 years ago

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timurjin [86]

You equation is 62-2x

4 0

2 years ago

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6 x (8 - 3) = (? x 8) - (? x 3) what are the answers for the question marks?

Elina [12.6K]

6 x (8 - 3) =

(6 x 8) - (6 x 3)

The answer is 6

3 0

3 years ago

Read 2 more answers