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3 years ago

Solve these following equations A.3÷25.50= B. 8÷1.624= C.7 ÷21.56= D.5 ÷1.005

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

A:2/17
B:1000/203
C:25/77
D:1000/201

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The constants are 7 and 1

Step-by-step explanation:

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3 years ago

A sample of 15 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If s = 8.3 minutes, find the 95%

OleMash [197]

Answer:

The 95% confidence interval of the true mean.

(29.4261 ,36.9739)

Step-by-step explanation:

Step :- (i)

Given sample size 'n' =15

sample of the mean x⁻ = 33.2

The standard deviation of the sample 'S' = 8.3

95% of confidence intervals

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha }\frac{S}{\sqrt{n} } )$

Step:-(ii)

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The tabulated value t = 1.761 at 0.05 level of significance.

now substitute all possible values, we get

$(33.2 - 1.761\frac{8.3}{\sqrt{15} } ,33.2+ 1.761\frac{8}{\sqrt{15} } )$

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(33.2-3.7739 , 33.2+3.7739

(29.4261 ,36.9739)

Conclusion:-

the 95% confidence interval of the true mean.

(29.4261 ,36.9739)

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3 years ago

Express the solution graphically of – }(2x + 1) < 3.

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The third one counting from the top.

Step-by-step explanation:

We have the inequality:

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Now we can divide by 2 in both sides:

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Then we should see a number line such that all the points at the right of -5 are colored.

The correct option is the third one, counting from the top.

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Y=4/11x-1

:c) :c) :c)
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What is the value the 0 in the number 601,099

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There is one zero in the ten thousands place.
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3 years ago

Solve these following equations￼ A.3÷25.50= B. 8÷1.624= C.7 ÷21.56= D.5 ÷1.005

Solve these following equations A.3÷25.50= B. 8÷1.624= C.7 ÷21.56= D.5 ÷1.005