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2 years ago

What is the answer for 7/8+1/3 I really need this for my math homework please help me please thx

2 answers:

5 0

The answer to 7/8+1/3 is 29/24. This is because you have to find a common denominator, in this case it is 24. You convert the 7/8 by multiplying the top and the bottom by 3. Which ends up being 21/24. You convert 1/3 by multiplying the top and bottom both by 8. This gives you 8/24. You then take 8/24 and add it to 21/24 which gives you 29/24 or 1 5/24

Brilliant_brown [7]2 years ago

4 0

Answer:

Step-by-step explanation:

the you have to find the common denomontor which is 24 what ever you do to the bottom you do to the top so you answer is 1 5/24

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The first eight quizzes in this class had average scores of 8,9,9,8,8,9,8,7. This gives a sample mean of 8.25 and a sample stand

alexira [117]

Answer:

Test statistic

$t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

t = 1.076

Step-by-step explanation:

Step(i):-

Given Mean of the Population (μ) = 8.0

Mean of the sample (x⁻) = 8.25

Given data

8,9,9,8,8,9,8,7

Given sample size n= 8

Given sample standard deviation(S) = 0.661

Step(ii):-

Null hypothesis : H: (μ) = 8.0

Alternative Hypothesis :H:(μ) > 8.0

Degrees of freedom = n-1 = 8-1=7

Test statistic

$t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

$t = \frac{8.25 -8.0}{\frac{0.661}{\sqrt{8} } }$

t = 1.076

Critical value

t₍₇,₀.₀₅₎ = 2.3646

The calculated value t = 1.076 < 2.3646 at 0.05 level of significance

Null hypothesis is accepted

Test the hypothesis that the true mean quiz score is 8.0 against the alternative that it is not greater than 8.0

3 0

3 years ago

Help only 12 minutes left middle school math

Alex_Xolod [135]

Answer:

Step-by-step explanation:

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3 years ago

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11111nata11111 [884]

Alliteration

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Bas_tet [7]

Substitute with y = 4 and z = -2

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Hope This Helped! Good Luck!