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kipiarov [429]
3 years ago
6

Question 3 of 8

Mathematics
1 answer:
erastova [34]3 years ago
6 0

Answer:

A. and C.

Step-by-step explanation:

We don't know the area of the roof or the number of people in the group so they would both be represented by variables in an equation.

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So... What's the answer to this??
Sergio039 [100]

Answer:

12/5

Step-by-step explanation:

tan is o/a

so 24/10

simplify that

would be

12/5

7 0
3 years ago
Do-nothing #1 can count 5 more ceiling dots
klasskru [66]

Answer:

2

Step-by-step explanation:

5 0
2 years ago
Arthur is conducting a study on the preferred study options of students from East County College. He randomly selected 32 studen
ELEN [110]

Answer:

D. As the sample size is appropriately large, the margin of error is ±0.15

Step-by-step explanation:

The number of students in the sample, n = 32 students

The percentage of the students that preferred studying abroad, \hat p = 25%

The confidence level for the study = 95%

As a general rule, a sample size of 30 and above are taken as sufficient

The z-value at 95% confidence level, z = 1.96

The margin of error of a proportion formula is given as follows;

M.O.E. =  z^*\times \sqrt{\dfrac{\hat{p} \cdot(1-\hat{p})}{n}}

Therefore, we get;

M.O.E = 1.96\times \sqrt{\dfrac{0.25\times(1-0.25)}{32}} \approx \pm0.15

Therefore, the correct option is that as the sample size is appropriately large, the margin of error is ±0.15.

7 0
3 years ago
How do I number bond 346 + 234
ohaa [14]
   346
+ 234 ..... well 3 plus 2 is 5
                  4 plus 3 is 7
                   6 plus 4 is 10 
carries a one to 7 . 

answer - 538



8 0
3 years ago
Read 2 more answers
Each year, Malcolm earns 120 hours of vacation time at his job. There are 52 weeks in a year . What is the approximate numbers o
SIZIF [17.4K]

Answer:

2.3 hours

Step-by-step explanation:

Given that there are 52 weeks in the year and 120 hours of vacation time is earned through out the year, the approximate numbers of hours of vacation time that Malcolm make each week will be equivalent to the ratio of the total number of vacation time earned in the year to the number of weeks in the year.

Hence, the approximate numbers of hours of vacation time earned each week

= 120 / 52

= 2 4/13 hours

= 2.3 hours

6 0
3 years ago
Read 2 more answers
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