This is my answer.I hope this is useful.
Circumference = 2πr
So the circumference of the track is C = 2π .2 or .4π
3 times around the track is .4π x 3 or 1.2π - this is the answer but most teachers will want you to use 3.14 for pi.
so 1.2 x 3.14 = 3.768 km
Do you notice that I waited until the end to use the actual value of pi (3.14) in my calculations.
Keeping things in pi units until the very end saves time.
The inequality which represents possible values of the expression 2+sqrt 10 by virtue of the given inequality; 3.1 < sqrt 10 < 3.2 as in the task content is; 5.1 < 2 + sqrt 10 < 5.2.
<h3>Which inequality correctly expresses the possible values of the expression; 2 + √10 as required in the task content?</h3>
It follows from the task content that the expression given is;
3.1 < sqrt 10 < 3.2
Since the given premises is an inequality, it follows that adding the same number to all parts of the inequality stills holds the inequality true.
Hence by adding 2 to all parts of the inequality, we have;
2 + 3.1 < 2 + sqrt 10 < 2 + 3.2
Therefore, we have;
5.1 < 2 + sqrt 10 < 5.2
Ultimately, 5.1 < 2 + sqrt 10 < 5.2 represent the possible values of the expression 2+sqrt 10 as given by the inequality 3.1 < sqrt 10 < 3.2.
Read more on inequalities;
brainly.com/question/24372553
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Answer:
b is 9 and h is 18
Step-by-step explanation:
because its times 1.5 for each one so like 5 times 1.5 is 7.5 so we can see that it is times by 1.5
Answer:
cot x = 1
Step-by-step explanation: