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Hunter-Best [27]
3 years ago
5

The table shows the number of coils in different lengths of a spring.The spring next to the table shows an example of a 2 inch s

pring with 14 coils

Mathematics
1 answer:
Nastasia [14]3 years ago
4 0
The answer is A: 1 coil in a spring that is 7 inches long


i am not sure so correct me if i am wrong

hope this helps
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Are you good at maths?????????????????????????
Flauer [41]

The probability that a student, chosen at random, does not study chemistry is 20/41.

<h3>What is Probability?</h3>

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event. For an experiment having 'n' number of outcomes, the number of favorable outcomes can be denoted by x. The formula to calculate the probability of an event is as follows.

Probability(Event) = Favorable Outcomes/Total Outcomes = x/n

Here, Total number of student = 41

         Student who does not study chemistry = 20

So, the probability = favorable outcome / total outcomes

             P(not studying chemistry) = 20 / 41

Thus, The probability that a student, chosen at random, does not study chemistry is 20/41.

Learn more about Probability from:

brainly.com/question/11234923

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7 0
2 years ago
If 3x^2+3y^2=42 and xy =-15.Find the value (x-y)^2
Alexxandr [17]

Answer:

44

Step-by-step explanation:

Given, 3x^2 + 3y^2 = 42

=>3(x^2 + y^2) = 42 =>x^2 + y^2 = 42/3= 14

Thus,

= (x - y)^2

= x^2 + y^2 - 2xy

= (x^2 + y^2) - 2xy

= 14 - 2(-15)

= 14 + 30

= 44

4 0
3 years ago
What else would need to be congruent to show that AABC= ADEF by AAS?
bogdanovich [222]

Answer:

its b. AC=DF

btw where is the problem came from?

3 0
2 years ago
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