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yan [13]
3 years ago
15

the digits 3,4,5,6,7,and 8 are randomly arranged to form a 3 digit number not repeating. find the probability that the number is

even and greater than 800.
Mathematics
1 answer:
nadezda [96]3 years ago
7 0
The answer would be 212,I can't completely explain why because I did it the long way which took me over an hour to do.
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$35 to spend cake is $18 balloons are $4
Lera25 [3.4K]

Answer:

he spends $22 and has $13left

Step-by-step explanation:

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2 years ago
Find the value of x AND the value of each angle.
guapka [62]

Answer:

x=63

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Step-by-step explanation:

180-102=78

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2 years ago
Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8
drek231 [11]

Answer:

95% Confidence interval:  (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, \bar{x} = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)

(96.06,103.94) is the 95% confidence interval for  the population mean test score.

8 0
3 years ago
Can someone please help me it’s urgent
Yuki888 [10]
I believe it is 4 my good sir
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3 years ago
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30 dimes to 55 dimes
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55-30=25
So it is + 25 dimes
5 0
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