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Debora [2.8K]
3 years ago
13

Rewrite 7.13 as a mixed number in lowest terms.

Mathematics
1 answer:
Anit [1.1K]3 years ago
3 0
The lowest 7.13 can go as a mixed number is 7 13/100.
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How do you convert decimals into fractions?
Effectus [21]
Just put it over 100
Example 0.45 = 45/100
5 0
3 years ago
Lifetime of $1 Bills The average lifetime of circulated $1 bills is 18 months. A researcher believes that the average lifetime i
OLEGan [10]
<h2>Answer with explanation:</h2>

Let \mu be the population mean lifetime of circulated $1 bills.

By considering the given information , we have :-

H_0:\mu=18\\\\H_a:\mu\neq18

Since the alternative hypotheses is two tailed so the test is a two tailed test.

We assume that the lifetime of circulated $1 bills is normally distributed.

Given : Sample size :  n=50 , which is greater than 30 .

It means the sample is large so we use z-test.

Sample mean : \overline{x}=18.8

Standard deviation : \sigma=2.8

Test statistic for population mean :-

z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

\Rightarrow\ z=\dfrac{18.8-18}{\dfrac{2.8}{\sqrt{50}}}\approx2.02

The p-value= 2P(z>2.02)=0.0433834

Since the p-value (0.0433834) is greater than the significance level (0.02) , so we do not reject the null hypothesis.

Hence, we conclude that we do not have enough evidence to support the alternative hypothesis that the average lifetime of a circulated $1 bill differs from 18 months.

6 0
3 years ago
what digit is in the ten thousands place 1.03098 which is the correct answer I know it's one of the zeros I believe which one is
elena-14-01-66 [18.8K]
Hello there

Actually, the correct answer is the 9

the first 0 is in the tenths spot, the 3 is in the hundredths, the second zero is in the thousandths, and the 9 is in the ten thousandths, while the 8 is in the hundred thousandths.

Therefore, the 9 is in the ten thousandths place

I hope this helped ^^ 
4 0
3 years ago
I need help with the cross canceling
mihalych1998 [28]

Answer:58

Step-by-step explanation:

20×4 then 2×7 then add both answers u get 58

8 0
3 years ago
Read 2 more answers
The number of US patients killed annually by medical
Reil [10]

Answer:

False

Step-by-step explanation:

10 jumbo jets

8 0
3 years ago
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