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frozen [14]
3 years ago
13

What is the is for in the math problem .. The value of 3 in _is _ times the value of 3 in

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0
The is is nothing just do your problem
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Using the graph below, what is the best estimate of month 7's average temperature if the equation for the line of best fit is y
defon

Substitute x to be 7 (for month 7) and work out the equation:

y = -13(7) + 111

y = -91 + 111

y = 20

Your answer is 20 degrees Fahrenheit.

5 0
3 years ago
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Can someone help me fill in the blank
Elden [556K]

Answer:

integer

Step-by-step explanation:

The greatest integer function produces the greatest integer less than or equal   to x

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one each day dariene write in her personal diary and records whether the sun isshining or not when she looked back tough her dia
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3 years ago
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The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment
defon

Answer:

t = -1.428

Step-by-step explanation:

Average blood pressure among people with high responsibility jobs = u = 140 mm

Number of people sampled for the study = n = 51

Average blood pressure of the sample = x = 139 mm

Standard deviation of the sample = s = 5 mm

The claim is that practicing yoga decreases the blood pressure. So we have to test that after practicing yoga, the average blood pressure will be lesser than 140. Based on this we can formulate the null and alternate hypothesis as:

Null Hypothesis: \mu \geq 140

Alternate Hypothesis: \mu < 140

Since population standard deviation is not known, we cannot use z-distribution for this test. We are given the value of sample standard deviation, so t-test will be used for this case.

Test statistic is calculated as:

t=\frac{x-u}{\frac{s}{\sqrt{n} } }

Using the values in this formula gives us:

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Therefore, the value of test statistic is -1.428

4 0
3 years ago
6 + 2x = 24
Nutka1998 [239]
<span>6 + 2x = 24
2x = 18
x = 9
answer
9
----------
</span><span>3x – 5 ≥ 7
3x </span>≥ 12
x ≥ 4
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<span>{4, 5, 6}
</span>
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<span>4x – 3 ≥ 5
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</span><span>{2, 3, 4}
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<span>3r ≤ 4r – 6
 r </span> ≥ 6
answer
<span>{6, 7, 8, 9,10}</span>
6 0
3 years ago
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