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4 years ago

What is (3×3)+(42÷7+6) equal to?

Mathematics

1 answer:

Zanzabum4 years ago

4 0

Its is equal to 21 because 3x3 is 9 42/7 is 6 then 6+6=12 so then 9 +12=21

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Two hundred thirty million, three hundred forty-four thousand, nine hundred ninety-six

Lena [83]

230,344,996 is in number form

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3 years ago

HELP PLEASE ALSO SHOW YOUR WORK SO I CAN UNDERSTAND IT!!!!!!! ASAP ASAP

Hatshy [7]

4. $\sqrt{1625}$
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6. $\frac{5^{5} * 4^{2} * 2^{3}}{5^{4} * 4^{4} * 2^{3}} = \frac{5 * 1}{4^{2} * 1} = \frac{5}{16 * 1} =\frac{5}{16}$

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4 years ago

A survey of 400 non-fatal accidents revealed that 268 involved a distracted driver using some kind of electronic device. Constru

Misha Larkins [42]

A 95% confidence interval for the proportion of non-fatal accidents involving a distracted driver using some kind of electronic device is 62.5%<x<71.61%

The 95% confidence interval for the proportion is expressed according to the formula;

$CI=p\pm z\sqrt{\frac{p(1-p)}{n} }$

p is the proportion = 268/400 = 0.67

z is the 95% z-score = 1.96

n is the sample space = 400

Substitute the given parameters into the formula to have:

$CI=0.67\pm 1.96\sqrt{\frac{0.67(1-0.67)}{400} }\\CI=0.67\pm 1.96\sqrt{\frac{0.67(0.33)}{400} }\\CI=0.67\pm 1.96(0.0235)\\CI=0.67 \pm 0.0461\\CI=(0.67-0.0461, 0.67+0.0461)\\CI=(0.624, 0.7161)\\CI = (62.4 \%, 71.61 \%)$

Hence a 95% confidence interval for the proportion of non-fatal accidents involving a distracted driver using some kind of electronic device is 62.5%<x<71.61%

Learn more on confidence interval here: brainly.com/question/17212516

5 0

3 years ago

What is 13 - 4 x = 1 - x?

Zinaida [17]

Answer:

x=4

Step-by-step explanation

7 0

3 years ago

Read 2 more answers

Who wanna give me the answer ;)

patriot [66]

Answer:

Step-by-step explanation:

6 0

3 years ago