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alexira [117]
3 years ago
10

Enter the value for y that makes the equation 3y – 5y – (2y – 6) = 8y – 2(9y – 6) true.

Mathematics
1 answer:
romanna [79]3 years ago
8 0

Answer:

y = 1

Step-by-step explanation:

So to find the value of y that makes the equation true we have to calculate the value of y.

3y - 5y - (2y - 6) = 8y - 2(9y - 6)

First we have distribute;

3y - 5y - 2y + 6 = 8y - 18y + 12

Collect like terms next;

-4y + 6 = -10y + 12

Add 10y to both sides

6y + 6 = 12

Subtract 6 from both sides

6y = 6

Divide both sides by 6

y = 1

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Answer:

The correct answer is:

There is a positive correlation because women's weight tend to increase when height increases (D)

Step-by-step explanation:

The units that might be used to measure each variable are:

Height : meter (m) or foot (plural, feet) (Ft.)

weight : kilograms (kg) or Pounds (lb)

A positive correlation is said to occur between two variables when they both move in the same direction, that is, when they both increase or decrease, while a negative correlation occurs when the movement is not in tandem, i.e, as one increases, the other decreases. The relationship between height and weight is a positive correlation because, an increase in height, which is mainly as a result of elongation of bones, leads to an accumulated increase in total body mass, which in turn increases the body weight.

8 0
4 years ago
Is the value of the 8 in 12.984 the same as the value of the 8 in 7.38? Justify your response.
FinnZ [79.3K]

Answer:

Yes because they are both in the hundredths place

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP AND ANSWER BOTH QUESTIONS
nydimaria [60]
D is your answer

Expand and do FOIL method (first outside inside last)
simplify and then choose right answer

A is your answer

Do the same thing

hope this helps
3 0
3 years ago
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Which of the following is equal to (3x/5 -7) +7 ?
diamong [38]
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3 0
3 years ago
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When obtaining a confidence interval for a population mean in the case of a finite population of size N and a sample size n whic
Elanso [62]

Answer:

95% Confidence interval for the mean

142.8 \leq\mu\leq158.4

Step-by-step explanation:

We have to calculate a 95% confidence interval for the mean of a finite population.

The error is multiplied by the following finite population correction factor:

cf=\sqrt{\frac{N-n}{N-1} }

The standard deviation can be estimated as

\sigma=\frac{s}{\sqrt{n}} \sqrt{\frac{N-n}{N-1} } =\frac{24.4}{\sqrt{32} }* \sqrt{\frac{200-32}{200-1} }=3.963

The 95% confidence interval has a z value of 1.96, so it becomes:

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5 0
3 years ago
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