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3 years ago

Ann had

Mathematics

1 answer:

DanielleElmas [232]3 years ago

8 0

60 - (23 + 34) = 60 - 57 = 3....she had 3 fliers left to post.

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You flip a coin three times. What is the probability that you get heads all three times? Answer as a simplified fraction use the

Ratling [72]

Answer:

50% chance each time

each tim

6 0

3 years ago

Read 2 more answers

Five students visiting the student health center for a free dental examination during National Dental Hygiene Month were asked h

Andrews [41]

Answer:

[0.9 months, 32.69 months]

Step-by-step explanation:

The mean is

$\bf \bar x=\frac{5+17+12+21+29}{5}=16.8$

The standard deviation is

$\bf s=\sqrt{\frac{(5-16.8)^2+(17-16.8)^2+(12-16.8)^2+(21-16.8)^2+(29-16.8)^2}{5}}=8.1092$

Now, we have to find two values a and b such that the area under the Normal curve with mean 16.8 and standard deviation 8.1092 between a and b equals <em>95% = 0.95 </em>

Using a spreadsheet we find these values are

a = 0.906

b = 32.694

<h3>(See picture) </h3>

and our 95% confidence interval for the mean number of months elapsed since the last visit to a dentist for the population of students participating in the program rounded to two decimal places is

[0.9 months, 32.69 months]

4 0

3 years ago

NEED ASAP!! ILL GIVE YOU 30 points!!

scoundrel [369]

Answer:

X+Y is greater then or equal to 8

Step-by-step explanation:

In total she wants to sell <u>at le</u><u>ast</u> 8 items which implies shes willing to sell more (so greater or equal to) then it's adding X+Y bc those are the items that she is selling

5 0

3 years ago

I need help with 5 thanks

Mars2501 [29]

For every 3 cups of peanuts there are 2 cups of chocolate

9/3 = 3 so 3*2 = 6

For 9 cups of peanuts there are 6 cups of choclate

3 0

4 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Tatiana [17]

First you are going to look at the smallest box and figure out what the area is once you do that you will need to find the area of the bigger box once you figure out both of the areas you will then find out what they are you will then add up the amounts to get the area of both squares together

6 0

3 years ago