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Nadusha1986 [10]
2 years ago
14

Please help need it due now!!!

Mathematics
1 answer:
ahrayia [7]2 years ago
4 0

Answer:

1) 0.9, 0.99, 0.09, 0.0009

2) 4(2x²+9x)

3) 110

4) $9.50 per pizza

5) 23

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34 is added to x, the result is 98 . What is the value of x? Enter your answer in the box as a fraction in simplest form
KonstantinChe [14]

Not sure why it needs to be a fraction, if I am missing something please tell me. 64 or 64/1

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3 years ago
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Imagine you are having a potluck at your church this week. You are going to bring a dessert to share. This project includes a re
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Answer: You will need to multiply them by 5

Step-by-step explanation: 120÷24=5. So you would need to multiply all ingredients by 5 to get enough for 120 people.

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3 years ago
In 2000, the mayo clinic conducted a study of whether air dryers eliminate more germs than paper towels. researchers recruited 1
WARRIOR [948]

Answer:

This is an observational study based on a stratified sample.

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This study aimed to check which clean-up/drying up method after handwashing was more effective; that is, do dryers eliminate more germs than paper towels.

It involved 100 people that took part in the study. The 100 of them contaminated their hands and were instructed to wash their hands with soap and water for 15 seconds before the participants are randomly grouped into two strata; one stratum/group (consisting of 50 participants) that dries their hands with a dryer and another (also consisting of 50 participants) that dry their hands with paper towels.

An observational study is one in which data is collected only by monitoring the events of the study. The conductor of the study in no way tries to intervene or control any of the variables being studied. No control, no tweaking of factors, just observe and record data.

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This is exactly what the study in the question describes. This is why this study is undoubtedly an observational study based on a stratified sample.

Hope this Helps!!!

3 0
3 years ago
GUYS PLS HELP ME, its math and I'm really stuck
DiKsa [7]

Answer:

B. 1/2

Step-by-step explanation:

You can see that when two weeks that pass, the plant grows one inch. This rate can be written as 1 inch : 2 weeks. But, we need to find the unit rate. To find the unit rate, or how many inches the plant grows per week, we divide both by 2.

1/2 inch : 1 week

1/2

I Hope That This Helps! :)

7 0
2 years ago
Brian has reduced his cholesterol level by 8% after his last check up. If his original level was 200, what is his cholesterol le
s2008m [1.1K]

Answer:

B. 184

Step-by-step explanation:

A proportion is an easy way to solve this:

\frac{100\%}{200}  =  \frac{92\%}{x}  \\ 100x = 92(200) \\ x = 92(2) \\ x = 184

6 0
3 years ago
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