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son4ous [18]
3 years ago
10

Please help me with problem 1 of Systems of Linear Inequalities

Mathematics
1 answer:
matrenka [14]3 years ago
5 0

To solve correctly, graph both inequalities.   The solution is where they overlap.  <em>See attachment for graph. </em>Which coordinate is plotted in the overlapping section?

If you don't have the tools to graph them, then plug each coordinate into both inequalities.  The coordinate that makes a true statement for BOTH inequalities, is the answer.

(0, 4):   4 > -2   TRUE              0 + 4 < 4   FALSE

(-3, 5): 5 > -2 TRUE              -3 + 5 < 4 TRUE         THIS IS THE ANSWER!

(1, 4):   4 > -2 TRUE                1 + 4 < 4  FALSE

(-2, -3):  -3 > -2 FALSE          

Answer: (-3, 5)


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The average weight of a bar of soap should be 6.4 ounces with a standard deviation of 0.2 ounces. A sample of 20 bars of soap fo
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Answer:

The testing statistic is -2.237

Step-by-step explanation:

Test statistic (z) = (sample mean - population mean) ÷ (population standard deviation/√n)

sample mean = 6.3 ounces

population mean = 6.4 ounces

population standard deviation = 0.2 ounces

n (sample size) = 20

z = (6.3 - 6.4) ÷ (0.2/√20) = -0.1 ÷ 0.0447 = -2.237

8 0
4 years ago
REWARDING BRAINLY FOR CORRECT ANSWER
ivann1987 [24]

Answer:

Mean: 58

Median: 58

Step-by-step explanation:

  • The mean is a <u>type of </u><u>average</u>. <u>It is the </u><u>sum (total)</u><u> of all the values in a set of data</u>, such as numbers or measurements, divided by the number of values on the list. <u>To find the mean, add up all the values in the set. Then divide the sum by how many values there are.</u>
  • <u>The median is the </u><u>middle </u><u>number</u>; <em>found by ordering all data points and picking out the one in the middle</em>

FINDING THE MEAN:

57 + 54 + 59 + 57 + 61 + 58 + 60 = 406

406 ÷ 7 = 58

FINDING THE MEAN:

Arrange the numbers from <u>smallest to greatest:</u>

54, 57, 57, 58, 59, 60, 61

Find the <u>median</u> number:

54, 57, 57, <em><u>58</u></em>, 59, 60, 61

The median is: <u><em>58</em></u>

7 0
3 years ago
Read 2 more answers
What is 2 (m+6)= 48?
aleksklad [387]
M= 18

Have a good day
4 0
3 years ago
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5) Find the common ratio and the next term.<br> 512, 128, 32, 8,
serious [3.7K]

Answer:

The common ratio is \frac{1}{4}

The next term in the sequence is 2

Step-by-step explanation:

In a geometric sequence, the common ratio is the constant value you multiply a term by in order to find the value of the following term. Therefore, it is mathematically calculated as the quotient between a term and the term immediately before it. And it is in fact That is:

common ratio r=\frac{a_{n+1}}{a_n}

This quotient should be true for any two consecutive terms in the sequence.

so using the first two terms, we find:

r=\frac{a_{n+1}}{a_n}=\frac{a_{2}}{a1}=\frac{128}{512} =\frac{1}{4}

You can test that this common ratio is true for all other terms listed:

\frac{a_3}{a_2} =\frac{32}{128} =\frac{1}{4} \\\frac{a_4}{a_3} =\frac{8}{32} =\frac{1}{4} \\

So now, in order to find the term that follows, all we need to do is to multiply the last term given (8) by this common ratio:

a_5=8*\frac{1}{4} =2

7 0
3 years ago
The diagram below shows the construction of the center of the circle circumscribed about .∆ABC.
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the medians to the sides of triangle ABC
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