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masya89 [10]
3 years ago
12

Solve the system using multiplication for the linear combination method.

Mathematics
1 answer:
Yuki888 [10]3 years ago
5 0

Answer:

(2, 3)

Step-by-step explanation:

-2(2) + 6(3) = 14 \\  \\  -4 + 18 = 14 \\  \\  \\ 6(2) - 3(3) = 3 \\  \\ 12 - 9 = 3

I am joyous to assist you anytime.

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olga2289 [7]
I would say d. Unlikely
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3 years ago
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A psychologist wants to estimate the proportion of people in a population with IQ scores between 80 and 140. The IQ scores of th
ryzh [129]

Using the Empirical Rule, it is found that the proportion of people in a population with IQ scores between 80 and 140 is of 0.95 = 95%.

<h3>What does the Empirical Rule state?</h3>

It states that, for a normally distributed random variable:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of  the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

Considering the mean of 110 and the standard deviation of 15, we have that:

  • 80 = 110 - 2 x 15.
  • 140 = 110 + 2 x 15.

These values are both the most extreme within 2 standard deviations of the mean, hence the proportion of people in a population with IQ scores between 80 and 140 is of 0.95 = 95%.

More can be learned about the Empirical Rule at brainly.com/question/24537145

#SPJ1

7 0
2 years ago
Select the correct answer from the drop-down menu. a coin is biased to display heads 75% of the time. it is tossed 20 times, and
ella [17]

The most improbable simulation for this coin is the heading when a coin is tossed 20 times will be 15.

<h3>What is probability?</h3>

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1. Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.

A coin is biased to display heads 75% of the time.

It is tossed 20 times, and the outcomes are recorded.

Then the probability of getting heads when a coin is tossed 20 times. Then we have

\rm P = 0.75 \times 20 = 15

More about the probability link is given below.

brainly.com/question/795909

6 0
2 years ago
Simplify the expression <br> 9− 3(2)2
Kazeer [188]

Answer:

-3

Step-by-step explanation:

9-3(2)2

9-(6)2

9-12

-3

3 0
3 years ago
Read 2 more answers
A property had a list price of $164,000, an actual sale price of $158,000 and a $124,000 loan. If the transfer fee was $3 per $1
Kryger [21]

Answer:

The fee was <u>$474</u>.

Step-by-step explanation:

Given:

A property had a list price of $164,000, an actual sale price of $158,000 and a $124,000 loan.

If the transfer fee was $3 per $1,000.

Now, to find the fee.

The list price of the property = $164,000.

The sale price of the property = $158,000.

And the amount of loan = $124,000.

<u><em>As, the transfer fee is based on the sale price of the property.</em></u>

The transfer fee was $3 per $1,000.

So, let transfer fee be x for $158,000.

If, 3 is equivalent to 1000.

Then, x is equivalent to 158,000.

Now, to get the fee by using cross multiplication method:

\frac{3}{1000} =\frac{x}{158000}

<em>By cross multiplying we get:</em>

474000=1000x

<em>Dividing both sides by 1000 we get:</em>

474=x

x=\$474.

<em>The transfer fee = $474.</em>

Therefore, the fee was $474.

5 0
4 years ago
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