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Illusion [34]
3 years ago
15

Hong went shopping after she woke up. It took Hong 20 minutes to get ready to go shopping. She shopped for 45 minutes and then s

pent 40 minutes eating a snack. Then she talked on the phone with her friends for 30 minutes. She finished talking to her friends at 10:40 a.m. What time did Hong wake up? A. Work backward. Hong started talking with her friends at 10:10. Hong started eating at 9:30. Hong started shopping at 8:45. Hong woke up at 8:25. B. Work backward. Hong started talking with her friends at 10:40. Hong started eating at 11:10. Hong started shopping at 11:50. Hong woke up at 12:25. C. Work backward. Hong started talking with her friends at 10:20. Hong started eating at 9:40. Hong started shopping at 8:55. Hong woke up at 8:35
Mathematics
1 answer:
S_A_V [24]3 years ago
7 0
You've answered this yourself hong would wake up at 8:35
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Jaya forgets how to write numbers in expanded form. Explain the steps to her using the number 13.652 as an example, and then wri
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In the expanded form the digits of the number are split into each of the individual digits with their place value and written in expanded form. The example of standard form of a number is 4,982 and the same number can be written in expanded form as 4 × 1000 + 9 × 100 + 8 × 10 + 2 × 1 = 4000 + 900 + 80 + 2.
7 0
3 years ago
Read 2 more answers
Solve the system of equations by substitution:<br> y = 3x – 7<br> 6x- 2y= 12
Pie

Answer: no solution

y=3x-7

6x-2y=12

6x-2(3x-7)=12

6x-6x+14=12

14=12

3 0
3 years ago
Select the correct answer.
ValentinkaMS [17]

Answer:

The answer is A.

g(x) = 2( {x}^{2}  - 3x - 28)

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3 years ago
Bernard designs motorized bicycles at Smart Gear Technologies. His total earnings are
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Answer: $43146

Step-by-step explanation:

So his total earning is $54,000. He has to pay $201 for every $1,000 he earns. So 54,000/1,000= 54. So now he has to pay 54*201=10854, 54000-10854=43146. His net income for this year is $43146.

8 0
3 years ago
A survey in Men’s Health magazine reported that 39% of cardiologists said that they took vitamin E supplements. To see if this i
zzz [600]

Answer:

z=\frac{0.36 -0.39}{\sqrt{\frac{0.39(1-0.39)}{100}}}=-0.615  

The p value for this case would be:

p_v =2*P(z  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

Step-by-step explanation:

Information given

n=100 represent the random sample taken

X=36 represent the number of people that take E supplement

\hat p=\frac{36}{100}=0.36 estimated proportion of people who take R supplement

p_o=0.39 is the value that we want to test

\alpha=0.05 represent the significance level

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true proportion is equatl to 0.39 or not, the system of hypothesis are.:  

Null hypothesis:p=0.39  

Alternative hypothesis:p \neq 0.39  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info we got:

z=\frac{0.36 -0.39}{\sqrt{\frac{0.39(1-0.39)}{100}}}=-0.615  

The p value for this case would be:

p_v =2*P(z  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

8 0
2 years ago
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