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3 years ago

What is 40.545 in word form?

Mathematics

2 answers:

uranmaximum [27]3 years ago

5 0

Answer:

Forty and five hundred forty five thousadnTHS.

Step-by-step explanation:

I hope this helps! (Remember THS. Not ThousANDS.) :)

Ghella [55]3 years ago

3 0

Answer:

forty and five hundred forty-five thousandths

Step-by-step explanation:

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A simple random sample (SRS) of 150 is taken from a population with a 0.6 proportion of success. An independent SRS of 250 is ta

Virty [35]

Answer:

$SE_{\hat p_1 -\hat p_2}= \sqrt{\frac{0.6(1-0.6)}{150}+\frac{0.3(1-0.3)}{250}}= 0.0494$

Step-by-step explanation:

For this case we have the following data:

$n_1 =150$ represent the random sample 1 selected

$\hat p_1 =0.6$ represent the proportion of success for the sample 1 selected

$n_2 =250$ represent the random sample 2 selected

$\hat p_2 =0.3$ represent the proportion of success for the sample 2 selected

We know for this case that we can use the normal approximation since for both cases we have:

$n_1 p_1 =90 \geq 10, n_1 (1-p_1)=60 \geq 10$

$n_2 p_2 =75 \geq 10, n_2 (1-p_2)=175 \geq 10$

We have the randomization condition and we assume that the two samples are <10% of the entire population size.

So then we can use the following distribution for the proportions:

$p \sim N( \hat p, \sqrt{\frac{\hat p (1-\hat p)}{n}})$

For this case we want to find the distribution for the difference of these two proportions and we have this:

$p_1 -p_2 \sim N (\hat p_1 -\hat p_2 , \sqrt{\frac{\hat p_1 (1-\hat p_1)}{n_1} +\frac{\hat p_2 (1-\hat p_2)}{n_2}})$

So then the dtandard deviation would be given by:

$SE_{\hat p_1 -\hat p_2}= \sqrt{\frac{0.6(1-0.6)}{150}+\frac{0.3(1-0.3)}{250}}= 0.0494$

4 0

3 years ago

Read 2 more answers

For 50 points and possibly brainliest:<br><br>

ryzh [129]

Answer: Marry Christmas!

Step-by-step explanation:

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3 years ago

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Find the sum and classify the polynomial based on degree and number of terms.

Andru [333]

$3n^2(5m^2 -2n + 1) + 4m^2 - 11n^4 - 9 = 15m^2n^2 - 6n^3 + 3n^2 + 4m^2 - 11n^4 - 9 =\\15m^2n^2 -11n^4 -6n^3 + 3n^2 + 4m^2 - 9.\\$The degree with respect to the variables m, y is 2.\\With respect to m is 2, with respect to n is 4$

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3 years ago

How do i solve this using imaginary numbers? PLEASE HELP

Tasya [4]

Answer:

14 -2i

Step-by-step explanation:

9 + sqrt(-4) - ( -5 + sqrt(-16))

We know the sqrt of a negative number is i * sqrt(number)

9 + isqrt(4) - ( -5 + isqrt(16))

9 + 2i - (-5 + 4i)

Distribute the negative sign

9+2i +5 -4i

Combine like terms

14 -2i

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3 years ago

Find the missing length indicated

zhannawk [14.2K]

Answer:

x = 135

Step-by-step explanation:

The three triangles are similar.

144/y = y/81

y^2 = 144 * 81

y = 12 * 9

y = 108

81^ + 108^2 = x^2

x^2 = 18225

x = 135

8 0

3 years ago