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ELEN [110]
3 years ago
7

Jake tossed a paper cup 50 times and recorded how it landed. The table shows the results:

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

Answer:

0.06 = 6% probability of landing open side up.

0.14 = 14% probability of landing closed side up.

0.8 = 80% probability of landing on its side.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes. For an experimental probability, these numbers are taken from previous trials.

Landing open side up:

3 out of 50, so:

p = \frac{3}{50} = 0.06

0.06 = 6% probability of landing open side up.

Landing closed side up:

7 out of 50, so:

p = \frac{7}{50} = 0.14

0.14 = 14% probability of landing closed side up.

Landing on its side:

40 out of 50, so:

p = \frac{40}{50} = 0.8

0.8 = 80% probability of landing on its side.

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Most quadratic equations have______roots?
ElenaW [278]

Answer:

equal

Step-by-step explanation:

Most quadratic equations have <em>equal</em> roots.

5 0
3 years ago
the case of napkins contained 45 packs with a total of 10,125 napkins. each napkin contained the same number of napkins. write a
Pavlova-9 [17]
You would need to do 10,125/45 = n, and in which case we just solve. 
10,215/45=227, so there are 227 napkins in each box.


Hope this helps and have a nice day:)
7 0
3 years ago
What would be the third step in simplifying the expression 4 2 ÷ (2 · 9) + 5?
ludmilkaskok [199]
P
E
M
D
A
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okay since the first step is parenthesis, the next step would be exponents but you have none so you skip to multiplication, then you divide

divide is your answer
8 0
3 years ago
891 is 99% of what amount?
vaieri [72.5K]

Answer:

900

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
Read 2 more answers
A student wants to estimate the mean score of all college students for a particular exam. First use the range rule of thumb to m
Wewaii [24]

Answer:

See explanation below

<u>Step-by-step explanation:</u>

range = 2200 - 300 = 1900

To find standard deviation, we have:

standard deviation = range/4 = \frac{1900}{4} = 475

The range rule of thumb estimate for the standard deviation is 475

Given:

Standard deviation,\sigma = 475

Margin of Error, ME = 100

\alpha = 1 - 0.90 = 0.10

Za/2 = Z0.05 = 1.64

Find sample size, n:

n ≥ [Z_\alpha_/_2 * (\frac{\sigma}{ME})]^2

n ≥ [1.64 * (\frac{475}{100})]^2

n ≥ 60.68

≈ 61

Minimun sample size,n = 61

5 0
3 years ago
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