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cluponka [151]
3 years ago
10

Roman has 415 baseball cards. He gives away

Mathematics
2 answers:
gulaghasi [49]3 years ago
5 0
X = the number of days
280 + 3x = 415
Sergio [31]3 years ago
3 0

Answer:

45

Step-by-step explanation:

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A veterinarian sampled 235 sheep from a large herd to obtain a 90% confidence interval for the mean weight of wool from the shee
stiv31 [10]

Answer:

A. Wider and would have a smaller chance of missing the true mean.

Step-by-step explanation:

Margin of error for a confidence interval:

The margin of error for a confidence interval is given by:

M = z\frac{\sigma}{\sqrt{n}}

In which z is related to the confidence level(the higher the confidence level, the higher the value of z), \sigma is the standard deviation of the population and n is the size of the sample.

95% confidence interval

Would be wider than the 90% confidence interval, due to the higher value of z.

Also, a x% confidence interval has a x% chance of having the true mean, and a (100-x)% probability of missing the true mean.

Then, a 95% confidence interval has a smaller(5%) chance of missing the true mean compared to the 90% confidence interval(10%). This means that the correct answer is given by option A.

4 0
3 years ago
I need helppppp I forgot how to do this :(
Otrada [13]

a=associates / p=partners

1a= $800 / 1p= $1500

(6)a + (2)p = 800 x 6 + 1500 + 2 = $7800

(x)a + (y)p = $z

hope this helps :)

7 0
3 years ago
Ok I really don’t understand this
cluponka [151]

Answer:

number 2 in the left

Step-by-step explanation:

3 0
3 years ago
(9 x 10⁶)(8 x 10⁻⁴)= ?
ycow [4]

Answer: 7.2x10 3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
11 out of 24 peopled surveyed stated that they prefer glazed donuts at Dunkin Donuts. If 288 people buy a donut, how many can yo
MAVERICK [17]
You can predict 132 people will get a glazed donut.
explanation: if you divide 288 by 24 you get 12. with that you multiply 11 times 12 and get 132 which would get you to a fraction of 132/288.
6 0
3 years ago
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