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Sunny_sXe [5.5K]
3 years ago
7

3 1/3 + (-2 1/4) + 1 5/6=

Mathematics
1 answer:
trasher [3.6K]3 years ago
6 0

Answer:

2\dfrac{11}{12}

Step-by-step explanation:

The first step is to ensure that all of the fractions have a common denominator.

3\dfrac{1}{3}+\left( -2\dfrac{1}{4} \right) + 1\dfrac{5}{6}= \\\\3\dfrac{4}{12} - 2\dfrac{3}{12} +1 \dfrac{10}{12}= \\\\1\dfrac{1}{12}+1\dfrac{10}{12}= \\\\\boxed{2\dfrac{11}{12}}

Hope this helps!

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A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 432 gram setting. It
vova2212 [387]

Answer:

-2.154

Step-by-step explanation:

We are given;

Population mean; μ = 432

Sample mean; x¯ = 425

Sample size; n = 29

standard deviation; σ = 26

Hypothesis is defined as;

Null hypothesis; H0: μ ≥ 432

Alternative hypothesis: Ha: μ < 432

Formula for the test statistic since sample size is less than 30 is;

t = (x¯ - μ)/(σ/√n)

Plugging in the relevant values;

t = (425 - 432)/(26/√29)

t = -1.45

Now,we are given significance level of 0.02; our DF = n - 1 = 29 - 1 = 28

From t-table attached, we can see that at DF of 28 and significance value of 0.02, the critical value is 2.154

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Thus, the critical value of a left tailed test is negative. Thus, in this case our critical value will be -2.154

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2 years ago
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Nataly_w [17]

Answer:

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Step-by-step explanation:

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Answer:

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Range: {-5, 1, 7, 9}

Step-by-step explanation:

Given:

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Thus, the domain can be represented as:

{-2, -3, 6, 8, 10}

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3 years ago
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Answer:

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