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3 years ago

Ten is not equal to six divided by three

Mathematics

1 answer:

neonofarm [45]3 years ago

8 0

I didn't really know whatnu were asking so i took a guess..sorey if i didn't help

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Help I need to turn this in 15mins

Assoli18 [71]

9 = 4
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5 0

3 years ago

5a +8 2ab + 4 simplifies into:

GREYUIT [131]

Answer:

I think it is 5a+2ab+12

6 0

3 years ago

I have a few questions!

Sedaia [141]

Answer:

okay first one is ,3

Step-by-step explanation:

3 0

2 years ago

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The estimate of the population proportion should be within plus or minus 0.02, with a 90% level of confidence. The best estimate

Rudiy27

Answer:

The sample size required is 910.

Step-by-step explanation:

The confidence interval for population proportion is:

$CI=\hat p\pm z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }$

The margin of error is:

$MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }$

Given:

$\hat p = 0.16\\MOE= 0.02\\Confidence\ level =0.90$

The critical value of <em>z</em> for 90% confidence level is:

$z_{\alpha /2}=z_{0.10/2}=z_{0.05}=1.645$ *Use a standard normal table.

Compute the sample size required as follows:

$MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }\\0.02=1.645\times \sqrt{\frac{0.16(1-0.16)}{n} }\\n=\frac{(1.645)^{2}\times 0.16\times (1-0.16)}{(0.02)^{2}} \\=909.2244\\\approx910$

Thus, the sample size required is 910.

5 0

3 years ago

Lilian is packing gifts for the needy. She has 240 toys and 180 books

Virty [35]

Answer:

1. 240+180=420 packages.

2. 420 ÷ 240=2 toys and 1 left over.

3. 420 ÷ 180=2 books and 1 left over.

Step-by-step explanation:

Lilian can either put 1 toy and 1 book in the same package or separate them.

6 0

3 years ago

Read 2 more answers