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labwork [276]
3 years ago
11

Answer please please

Mathematics
2 answers:
Neporo4naja [7]3 years ago
5 0

Answer:

12.56 units^{2}

Step-by-step explanation:

Area = \frac{C*C}{4\pi }

So, (12.56*12.56)/(4*3.14) results in 12.56^{2}/12.56 resulting in 12.56 units squared

adoni [48]3 years ago
5 0
Hello how are you doing today
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Find the gradient of this line. Use gradient = rise/run
Marysya12 [62]

Step-by-step explanation:

the gradient of the line = 2 units/ 3 units = 2/3

5 0
2 years ago
Consider two events such that P(A) = 1/4 , P(B) = 2/3 , and P(A ∩ B) = 1/5 . Are events A and B independent events?
fredd [130]
P(A) = 1/4
p(B) = 2/3
p(A ∩ B) = 1/5
p(A).p(B) = 2/12 = 1/6 ≠p(A ∩ B )
thus no, they are dependent because P(A) ⋅ P(B) ≠ P(A ∩ B)
4 0
3 years ago
Given a term in a geometric sequence and the common ratio, find the explicit formula, a11=5120 ans r=-2
sweet-ann [11.9K]

Answer:

U_n=5(-2)^{n-1}

Step-by-step explanation:

Given a geometric sequence, the nth term of the geometric sequence is obtained by using the formula:

U_n=ar^{n-1}

If the eleventh term, a_{11}=5120

and the common ratio, r=-2.

Then:

5120=a(-2)^{11-1}\\a=\frac{5120}{2^{10}} =5

The explicit formula for the sequence is:

U_n=5(-2)^{n-1}

5 0
3 years ago
Clair has 60 yd of fence with which to build a rectangular pig sty. What is the maximum area she can enclose?
inn [45]
Assuming this Fence enclosment will be in the shape of a rectangle we will use the equation used to find the area of a rectangle, b×h=a

Using this formula we then must pick out factors used to create, in which the perimeter will add up to 60

·1,29,1,29 (29)
·2,28,2,28 (56)
·3,27,3,27 (81)
·4,26,4,26 (104)
·5,25,5,25 (125)
·6,24,6,24 (144)
·7,23,7,23 (161)
·8,22,8,22 (176)
·9,21,9,21 (189)
·10,20,10,20 (200)
·11,19,11,19 (209)
·12,18,12,18 (216)
·13,17,13,17 (221)
·14,16,14,16 (224)
·15,15,15,15 (225)



using this we can learn<span> that the maximum area that can be exclosed by this is 225, because the 2 perimeter lengths that define this rectangle would be 15 and 15.

</span>b(15)×h(15)=225(a)

therefore, your answer is 225 Units

<span>-I hope this is the answer you are looking for feel free to post your questions here on brainly in the future</span>
6 0
3 years ago
Since quarantine my brain seems to be forgetting things.
Anastaziya [24]

Answer:

Step-by-step explanation:

for the area of a regular polygon, the formula is area=1/2 perimeter x apothem, or area=1/2pa

the apothem(A) is the segment that joins the center to the midpoint of any side

6 0
3 years ago
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