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3 years ago

In the figure YAZ = BAC by angle side angle which angles are congruent by CPCTC

Mathematics

1 answer:

Gelneren [198K]3 years ago

3 0

Answer:

Step-by-step explanation

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Suppose a researcher is interested in understanding the variation in the price of store brand milk. A random sample of 36 grocer

liberstina [14]

Answer: ($3.055, $3.205)

Step-by-step explanation:

Given : Significance level : $\alpha: 1-0.95=0.5$

Critical value : $z_{\alpha/2}=1.96$

Sample size : n= 36

Sample mean : $\overline{x}=\$\ 3.13$

Standard deviation : $\sigma= \$\ 0.23$

The confidence interval for population mean is given by :_

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

$\text{i.e. }\$\ 3.13\pm (1.96)\dfrac{0.23}{\sqrt{36}}\\\\\approx\$\ 3.13\pm0.075\\\\=(\$\ 3.13-0.075,\$\ 3.13+0.075)=(\$\ 3.055,\$\ 3.205)$

Hence, the 95% confidence interval to estimate the population mean = ($3.055, $3.205)

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3 years ago

Carter is going to invest $210 and leave it in an account for 5 years. Assuming the interest is compounded annually, what intere

mr_godi [17]

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3 years ago

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cricket20 [7]

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3 years ago

3 is what percent of 90?

Eddi Din [679]

Percentages
3% of 90 = 2.7 Dec 24 08:19 UTC (GMT)
1.3% of 50 = 0.65 Dec 24 08:19 UTC (GMT)
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76.56% of 309 = 236.5704

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3 years ago

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