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3 years ago

Question 1 2XY3 + 3XY3 5X2Y6 True or False

Mathematics

2 answers:

Natasha_Volkova [10]3 years ago

8 0

I would say is true because ur adding

Law Incorporation [45]3 years ago

5 0

U believe it’s F....

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12.5 percent of what number is 24

irina [24]

24 : 12.5/100 = 24 * 100/12.5 = 192;

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3 years ago

A recent survey indicated that the average amount spent for breakfast by business managers was $9.33 with a standard deviation o

olasank [31]

Answer:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3$

Step-by-step explanation:

Information given

$\bar X=9.41$ represent the sample mean

$s=0.24$ represent the sample standard deviation

$n=81$ sample size

$\mu_o =9.33$ represent the value to verify

$\alpha=0.05$ represent the significance level

t would represent the statistic

$p_v$ represent the p value

Hypothesis to test

We want to test if the true mean is higher than 9.33, the system of hypothesis would be:

Null hypothesis: $\mu \leq 9.33$

Alternative hypothesis: $\mu > 9.33$

The statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3$

4 0

3 years ago

What is the value of this expression? 4/15+3/5−2/3 Quick

VMariaS [17]

Answer:

I think that would be 1/5

Explanation:

Hope this helps!

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2 years ago

What percentage of this shape is shaded?

Lilit [14]

Answer:

50%

Step-by-step explanation:

8 0

3 years ago

Esitmate 242 PLEASEEEEEEEEE I NEED THIS

horsena [70]

Answer:

im confused lol ill editthis once you give me the full thing

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers