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Arte-miy333 [17]
3 years ago
6

Lucas jogged 13 mile in 4 minutes. He divided to find how far he jogged per minute, but he made a mistake. Which reason explains

why his answer might be wrong?
A.There are more than 12 equal parts in 13 of a whole.


B.When 13 of a whole is split into equal parts, each part is greater than 13.


C.12×4 does not equal 13.


D.The answer must be a whole number.
Mathematics
1 answer:
posledela3 years ago
4 0
I don't know what he's answer was but the corrected answer is 3.25
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The answer to this question is:
<span>Leila started a savings account to buy a new bike. She started with some money her grandmom gave her and added the same amount each week from her babysitting earnings. What is the dependent variable?
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3 years ago
A survey showed that out of 600 surgery patients at ABC Medical Center, 8% of them had eye surgery. Find the number of patients
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Answer:

48

Step-by-step explanation:

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3 years ago
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Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The
sattari [20]

Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

The test is:_____.

c. two-tailed

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The p-value is:_____. 0.09887

Based on this we:_____.

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Step-by-step explanation:

We formulate null and alternative hypotheses as  proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

The alternative hypothesis H1 is that the 80% of the  proportion is different and null hypothesis is , it is same.

For a two tailed test for significance level = 0.2 we have critical value  ± 1.28.

We have alpha equal to 0.2  for a two tailed test . We divided alpha with 2 to get the answer for a two tailed test. When divided by two it gives 0.1 and the corresponding value is ± 1.28

The test statistic is

p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

Where p = 0.8 , q = 1-p= 1-0.8= 0.2

n= 200

Putting the values

0.8 ± 1.28 \sqrt{\frac{0.8*0.2}{200} }

0.8 ± 0.03620

0.8362, 0.7638

As the calculated value of z lies within the critical region  we reject the null hypothesis.

8 0
3 years ago
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soldi70 [24.7K]
The answer is
C) -7

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3-10+2-2
Subtract 10 from 3 :
-7+2-2
Add -7 and 2 :
-5 - 2
Subtract 2 from -5:
-7

3 0
3 years ago
Which equation represents the statement thirteen less then a number is forty two
Ludmilka [50]
X-13=42 
x is the "variable", you're taking 13 away from that, and the answer is also given, 42. 
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3 years ago
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