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3 years ago

12

A circle is centered at the point (-3, 2) and passes through the point (1, 5). The radius of the circle is units. The point (-7,

) lies on this circle

2 answers:

yKpoI14uk [10]3 years ago

3 0

The answer is (-7,4). that is the right answer

kow [346]3 years ago

3 0

Answer:

radius 5. (-7,-1) is on the circle

%100 correct on PLATO

Step-by-step explanation:

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What is the image of (0,-8)(0,−8) after a reflection over the line y=-xy=−x?

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Answer:

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Step-by-step explanation:

under a reflection in the line y = - x

a point (x, y ) → (- y, - x ) , then

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2 years ago

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3 years ago

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murzikaleks [220]

Answer:

0.59 cents

Step-by-step explanation:

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3 years ago

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2 years ago

If 8,a,b,27 are in geometric sequence, find the value of a and b.

wel

Answer:

a = 12 and b = 18

Step-by-step explanation:

Given that,

8,a,b,27 are in geometric sequence.

For a GP, the nth term is given by :

$a_n=ar^{n-1}$

Put n = 4

$a_4=ar^{4-1}\\\\a_4=ar^3\\\\27=8\times r^3\\\\r^3=\dfrac{27}{8}\\\\r=\dfrac{3}{2}=1.5$

Put n = 2,

$a_2=ar^{2-1}\\\\a=ar\\\\a=8\times 1.5\\\\a=12$

Put n = 3

$a_3=ar^2\\\\=8\times 1.5^2\\\\b =18$

So, the values of a and b is 12 and 18 respectively.

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3 years ago