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diamong [38]
3 years ago
15

Can you please not sit on my eggplant Because if 6 inches plus 6 inches is not 3 inches but it would be 12 inches then why would

it be 12 inches if it wasn’t 3 inches?
Mathematics
1 answer:
Vinvika [58]3 years ago
7 0

Answer:

because you add. if you would subtract 6 inches by 3 inches it would be 3 inches.

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Someone please help so confused
Stolb23 [73]
-9x-35 is the answer. I hope this helps!
7 0
3 years ago
Pls help What is true about the following sequence: 2.7, 6.5, 10.3, 14.1, 17.9*
RSB [31]

Answer:

<em>D.) It has a common difference of 3.8</em>

Step-by-step explanation:

When you subtract a_{2} -a_{1} you get a common difference, the same goes for the other values: when you subtract the previous term from the next, you get a common difference of positive 3.8

7 0
3 years ago
In a study of the accuracy of fast food​ drive-through orders, Restaurant A had 229229 accurate orders and 7070 that were not ac
tiny-mole [99]

Answer:

a) 90% Confidence interval for true proportion of orders that are not accurate

= (0.194, 0.274)

In percentage terms, (19.4%, 27.4%)

b) Since the two confidence intervals overlap, neither restaurant appears to have a significantly different percentage of orders that are not accurate.

Step-by-step explanation:

a) Confidence Interval for the population proportion of orders that are not accurate is basically an interval of range of values where the true population proportion of orders that are not accurate can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Sample proportion of orders that were not accurate = 70 ÷ (70 + 229) = 0.2341

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value at 90% confidence interval for sample size of (70+229=299) is obtained from the z-tables because although, the population standard deviation is not known, the sample size is large enough.

Critical value = 1.645 (from the z-tables)

Standard error of the mean = σₓ = √[p(1-p)/N]

p = sample proportion of orders that are not accurate = 0.2341

n = sample size = 299

σₓ = √(0.2341×0.7659/299) = 0.02449

95% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]

CI = 0.2341 ± (1.645 × 0.02449)

CI = 0.2341 ± 0.04028

90% CI = (0.19382, 0.27438)

90% Confidence interval = (0.194, 0.274)

b) Confidence Interval for true proportion of orders that are not accurate

For Restaurant A = (0.194, 0.274)

For Restaurant B = (0.216, 0.297)

There is overlap. For example, p = 0.235 is possible for both intervals, which means that both restaurants could have a 23.5% inaccuracy rate. If there was no overlap of the intervals, then it would be impossible for p to be the same value for both restaurants. So again, we could conclude that the restaurants could have the same inaccurate order rate due to the overlap. There just isn't enough evidence to suggest that the true percentage of orders that are not accurate for the 2 restaurants are very different.

Hope this Helps!!!

5 0
3 years ago
Need help with this asap
dem82 [27]

Answer:

I cant lie I don't know this answer

4 0
2 years ago
Read 2 more answers
Help Please I will give brianliest if correct!!
Tomtit [17]

:

A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?  

–90

–78

–66

–12

8 0
3 years ago
Read 2 more answers
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