What is the exact circumference of a circle with a radius of 15 cm?
2 answers:
Answer: C: 30π cm
Step-by-step explanation:
The circumference of a circle is given by :-
, where r is the radius of the circle.
We are given that : The radius of the circle = 15 cm
then , the circumference of the circle will be :-
Therefore, the exact circumference of a circle with a radius of 15 cm =
Thus , the correct option is C: 30π cm
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Answer: No, as the total cost of the 3 shirts w/ sales tax is $45.36 and she only has $45.
Step-by-step explanation:
Start by finding the price of one shirt on sale.
This equals 3.6 which is how much will be deducted from the original price.
One shirt costs when its 20% off.
This is equal to $14.40.
Since she wants to buy 3 of them we just multiply the $14.40 by 3.
This equals $43.2 but this is without a 5% sales tax which is normally added to the total end price.
To add a sales tax you take the sales tax percent plus 1 and multiply it to the $43.2.
This means the total price of Kayla's purchase will be $45.36.
This is over her $45 she has so she can not buy it.