Shane's bill for lunch at a restaurant was $19 he left a 20% tip what was the amount of the tip
1 answer:
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Answer:
6 inches
Step-by-step explanation:
Formula for surface area of a cylinder:
Plug in values and solve for the radius:
Divide both sides by
Subtract 90 from both sides
Use the quadratic equation to find the roots
±
(sorry for formatting, Brainly doesn't
allow equations with ± in them)
and
and
and
and
and
and
We can't have a negative radius, so that leaves us with r=6 in.
Answer:
The number of times coin thrown was <u>500</u>.
Step-by-step explanation:
Given:
A coin lands on heads 200 times. the relative frequency of heads is 0.4.
Now, to find the times coin was thrown.
Let the number of times coin thrown was be
Relative frequency = 0.4.
Number of lands on heads = 200.
So, to get the number of times coin was thrown we put formula:
<em>By cross multiplying we get:</em>
<em>Dividing both sides by 0.4 we get:</em>
Therefore, the number of times coin thrown was 500.