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3 years ago

Are these good notes on math?

Mathematics

1 answer:

Archy [21]3 years ago

5 0

Answer:

yes

Step-by-step explanation:

it sounds good to me

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Which of the following is listed from least to greatest?

Blizzard [7]

Answer:

B. .002, .03, .6, .9

Step-by-step explanation:

.002 is .002

.03 is .030

.6 is .60

And, .9 is .90

So in conclusion, least to greatest would be .002 , .030 , .60 , then last but not least .90. The option that best matches this is B!

3 0

4 years ago

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Peyton is collecting data on the lunch habits of students at Hyattsville Middle School. In one class, 14 students bring lunch fr

mart [117]

Answer:

Answer: Around 1000 students would buy a school lunch.

Step-by-step explanation:

We know that in one class, 14 students bring lunch from home, and 20 buy lunch in the school. This will be our sample.

In total we have 20 + 14 = 34 students, this will be our 100%.

The percentage of students that bring lunch from home can be estimated as the quotient between the number of students that bring lunch from home and the total number of students, times 100%.

p1 = (14/34)*100% = 41.18%

And the percentage of students that buy lunch at school can be computed in the same way:

p2= (20/34)*100% = 58.82%

Then, out of the 1700 students in middle school, we can estimate that around 58.82% of them will buy lunch in the school.

Then the exact number will be:

N = (58.82%/100%)*1700 = 1000

Around 1000 students would buy a school lunch.

7 0

3 years ago

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles.

EastWind [94]

Green: 3/12
Black: 1/4

5 0

2 years ago

For pigs, the length of pregnancies varies according to a normal distribution with a mean of 114 days and a standard deviation o

riadik2000 [5.3K]

Answer: The length of approximately 68% of all pig pregnancies will fall between 109 days and 119 days.

Step-by-step explanation:

According to the empirical rule , 68% of the population falls within one standard deviations from the mean.

Given : For pigs, the length of pregnancies varies according to a normal distribution with a mean of 114 days and a standard deviation of 5 days.

According to the Empirical Rule, the length of approximately 68% of all pig pregnancies will fall between $114-1(5)$ days and $114+1(5)$ days .

i.e. the length of approximately 68% of all pig pregnancies will fall between 109 days and 119 days.

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3 years ago

Find the percent of increase: Year 2005 2010 Population 3.2 (millions) 5.6

hjlf

Answer:

the answer is x4sqaured=2

mark me brainliest

Step-by-step explanation:

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3 years ago

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