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2 years ago

If your grade is 81.89% and you get 30% on a hw whats your grade

Mathematics

2 answers:

ss7ja [257]2 years ago

7 0

Answer:

75%

Step-by-step explanation:

zvonat [6]2 years ago

7 0

Answer:

homework is 30% of ur grade i thought it was 15%

Step-by-step explanation:

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Suppose that many large samples are taken from a population and that the

rewona [7]

Answer:

$0.22 -1 *0.029 =0.191$

$0.22 +1 *0.029 =0.249$

And the best option would be:

D. (0.191 to 0.249)

Step-by-step explanation:

For this case we know that the mean is:

$\bar X = 0.22$

And the standard error is given by:

$SE = 0.029$

We want to construct a 68% confidence interval so then the significance level would be :

$\alpha=1-0.68 = 0.32$ and $\alpha/2 =0.16$ . The confidence interval is given by:

$\bar X \pm z_{\alpha/2} SE$

Now we can find the critical value using the normal standard distribution and we got looking for a quantile who accumulate 0.16 of the area on each tail and we got:

$z_{\alpha/2}= 1$

And replacing we got:

$0.22 -1 *0.029 =0.191$

$0.22 +1 *0.029 =0.249$

And the best option would be:

D. (0.191 to 0.249)

5 0

2 years ago

What is 2x-5y+15=0 written in slope-intercept form

Nadya [2.5K]

The answer is y=2/5x+3

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3 years ago

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Will guys only notice u for ur looks, is that the first thing they care abt?

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2 years ago

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A gardener is planting flowers. He plants 30 flowers in each garden bed. He plants 9 garden beds. How many flowers does the gard

yuradex [85]

The gardener planted 270 flowers

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3 years ago

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Herbert has sold 90, 45, 103 and 68 appliances in the last four months, respectively. How many appliances will he need to sell t

Elena-2011 [213]

Answer:

The sale this month = 79

Step-by-step explanation:

Let the amount he needs to sell this month = x

$Average = \frac{sum\ of\ individual\ data\ }{number\ of\ entries}$

$Average= \frac{90\ +\ 45\ +\ 103\ +\ 68\ +\ x}{5}$

Note that number of entries = number of months = 5

To maintain an average sales of 77, the amount of sale in month 5 is determined as follows:

$77 = \frac{306\ +\ x}{5} \\cross-multiplying\\77\ \times\ 5\ = 306\ +\ x\\385 = 306\ +\ x\\x =385\ -\ 306\\x = 79$

7 0

2 years ago