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Murrr4er [49]
3 years ago
8

What is 805 x 4 and What is 3,220 divided by 4?

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

Answer:

805× 4= 3220

3220÷4=805

they are interconnected answers

hope it helps ,pls mark me as brainliest

Dima020 [189]3 years ago
4 0

Answer:

805 x 4 = 3,220

3,220 / 4 = 805

Step-by-step explanation:

Its the same thing but backwards!

Stay Safe!

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Is there a difference in the number of people who have an Annual pass to Disney World comparing people who live in Florida to th
zlopas [31]

Answer:

Fail to reject the null hypothesis.

Step-by-step explanation:

People who live in Florida and also have annual pass to Disney world is 221, sample size selected for group 1 is 350.

People who do not live in Florida and have annual pass to Disney world is 365, sample size selected for Group 2 is 650.

Group 1 sample proportion is : 221 / 350 = 0.6314

Group 2 sample proportion is 365 / 650 = 0.5615

Test statistics is 0.8317

Since test stats value is greater than the sample proportion significance level, we fail to reject the null hypothesis.

6 0
3 years ago
PLEASE HELP
Kruka [31]

Answer:

17 inches

Step-by-step expl

8 0
3 years ago
Read 2 more answers
What is the input of 3x-7 when it equals -1
AveGali [126]

Answer:

21

Step-by-step explanation:

3x-7=-21

-21x-1=21

hope this helps, brainliest is always appreciated :3

8 0
2 years ago
A research group needs to determine a 90% confidence interval for the mean repair cost for all car insurance small claims. From
lutik1710 [3]

Answer:

a) z = 1.645

b) The should sample at least 293 small claims.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645, which means that the answer of question a is z = 1.645.

Now, find  the margin of error M as such

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

In which \sigma is the standard deviation of the population and n is the size of the sample.

(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?

They should sample at least n small claims, in which n is found when

M = 12, \sigma = 124.88. So

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

12 = 1.645*\frac{124.88}{\sqrt{n}}

12\sqrt{n} = 205.43

\sqrt{n} = \frac{205.43}{12}

\sqrt{n} = 17.12

\sqrt{n}^{2} = (17.12)^{2}

n = 293

The should sample at least 293 small claims.

8 0
3 years ago
What is the area model for 821 x 54
Kay [80]
4,334 Is The Answer


821
x
54
———
3284
1050
————
4,334

7 0
3 years ago
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