Anthony found a sweater on sale for 15% off! The discount price of the sweater before tax is $22.74. What is the regular price o
1 answer:
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Answer:
5.73cm
Step-by-step explanation:
Given parameters:
Circumference of the circle = 36cm
Unknown
Length of the radius = ?
Lets represent the radius by r
Solution
The circumference of a circle is the defined as the perimeter of a circle. The formula is given as:
Circumference of a circle = 2πr
Since the unknown is r, we make it the subject of the formula:
r =
r = =
= 5.73cm
Answer:
Step-by-step explanation:
First of all we need to graph f(x)=8x, (First picture)
Now we have to calculate the area enclosed by the graph of the function, the horizontal axis, and vertical lines at and
,
The area that we have to calculate is in pink (second picture).
The function is positive and the domain is then we can calculate the area with this formula:
,
In this case
The result of the integral is,
, but the integral is defined in [2,6] so we have to apply Barrow's rule,
<em>Barrow's rule:</em>
<em>If f is continuous in [a,b] and F is a primitive of f in [a,b], then:</em>
<em></em>
Applying Barrow's rule the result is:
