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siniylev [52]
2 years ago
7

2+2 Help please i really need it

Mathematics
2 answers:
Dafna11 [192]2 years ago
3 0

Answer: 4

Step-by-step explanation:

babunello [35]2 years ago
3 0
4 I’m only answering this so I can ask a question
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N + 3.5 = 6.7<br> I need help badly plz
nexus9112 [7]

Answer:

the answer is. N = 3.2

I. 100000% sure about the answer.

6 0
2 years ago
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The number of Starbucks stores worldwide in 2006 was 12,440. In, 2014
Jlenok [28]
It all started by increasing the number of the years each year people buy Starbucks and every year it increasing <span />
8 0
3 years ago
. An investigator measuring various characteristics of a large group of athletes found that the correlation between the weight o
velikii [3]

Answer:

Step-by-step explanation:

Given that an investigator measuring various characteristics of a large group of athletes found that the correlation between the weight of an athlete and the amount of weight that athlete could lift was 0.60.

Correlation coefficient is the measure of association and a positive value implies that increase in one value causes increase in the other.

Hence out of the given options correct ones are

c) The more an athlete weights, on the average the more he weights.

d) The more an athlete can lift, on the average the more he weighs.

e) 60% of athlete's lifting ability can be attributed to his weight alone.

4 0
2 years ago
"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"
erastovalidia [21]

Answer:

The exam can be answered with exactly 8 answers correct in 6435 ways.

Step-by-step explanation:

The order is not important.

For example, answering correctly the questions 1,2,3,4,5,6,7,8 is the same outcome as answering 2,1,3,4,5,6,7,8. So we use the combinations formula to solve this problem.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

Combinations of 8 questions from a set of 15. So

C_{15,8} = \frac{15!}{8!(15-8)!} = 6435

The exam can be answered with exactly 8 answers correct in 6435 ways.

5 0
2 years ago
Please answer correct with an explanation thanks!
Strike441 [17]

Answer:

17/50

Step-by-step explanation:

P(red or purple) = number of red or purple / total

There are 7 red rings and 10 purple rings

                          = (7+10) / 50

                          = 17/50

3 0
2 years ago
Read 2 more answers
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