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blagie [28]
2 years ago
13

I give brainiest!!! Find the area of that sector. Show work.

Mathematics
2 answers:
Aleksandr [31]2 years ago
6 0
That's a quarter of the circle. So find the area of the circle, and divide by 4 to get the answer.

Circle area = 3.14*13^2 = 530.66
Answer = circle area / 4 = 132.665
Lady bird [3.3K]2 years ago
4 0

Answer:

132.7323 (4 dp)

Step-by-step explanation:

Area of sector formula: θ/360 x πr²

Substitute given values into formula:

90/360 x π x 13²

= 132.7323...

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Construct an explicit rule in function notation for the arithmetic sequence represented in the table. Then determine the value o
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Answer:

After 11 weeks, Darnell′s savings account will have a total of $8,360.

Step-by-step explanation:

The data provided is as follows:

   n:    1        2       3        4

f (n): 260   360   460   560  

Consider the data for f (n).

The series f (n) follows an arithmetic sequence with a common difference of 100 and first term as 260.

The nth term of an arithmetic sequence is:

a_{n}=\frac{n}{2}[2a+(n-1)d]

Compute the value of f (11) as follows:

f(11)=\frac{11}{2}[(2\times260)+(11-1)\times 100]

        =5.5\times[520+1000]\\\\=5.5\times 1520\\\\=8360

Thus, after 11 weeks, Darnell′s savings account will have a total of $8,360.

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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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