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2 years ago

6

What are the center and the radius of a circle with the equation (x + 5)² + (y - 4)² = 81

1 answer:

Alexeev081 [22]2 years ago

6 0

Step-by-step explanation:

We know that if the equation of the circle is (x-h)^2 + (y-k)^2 = r^2, it has a center of (h,k) and a radius of r.

Matching this up with the given equation, we get the center is (-5, 4) and the radius is 9.

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Can someone help me with this and explain it to me please? :)<br><br> CHECK ATTACHED

babymother [125]

23. not equivalent because the first row 3x-9y=5 then if you multiplied this equation by 2 it will be 2(3x-9y) = 2(5) so 6x-18y= 10 not 6x-9y=10

24.equivalent because the second row 2y-6x=8 multiplied by 2 is 2(2y-6x)= 2(8) so 4y-12x=16

25. equivalent because the first row 5x+3y=19 multiplied by 2 is 2(5x+3y) = 2(19) SO 10X+6Y=38 and the second row 2x+4y=20 multiplied by 5 is 5(2x+4y)= 5(20) so 10x+20y=100

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2 years ago

1)Find the remainder when 4x2 + 2x + 1 is divided by (2x +3).

bagirrra123 [75]

<h2><em>Answers:</em></h2>

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<em>1</em><em>5</em><em>0</em>

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3 years ago

Given that ƒ(x) = 3x, identify the function g(x) shown in the figure.

BaLLatris [955]

Step-by-step explanation:

where is the figureee??

3 0

3 years ago

The graph of a secant function shows no functional values on (−7, 7) . The asymptotes of the function occur every π units. Which

Nadya [2.5K]

Answer:

f(x) = 7 sec(x)

Step-by-step explanation:

The range of the function is less than -7 or greater than 7. So the midline is y=0 and the amplitude is 7.

There are two asymptotes per period, so the period of the function is 2π.

Therefore, the function is:

f(x) = A sec(2π / T x)

f(x) = 7 sec(2π / (2π) x)

f(x) = 7 sec(x)

6 0

3 years ago

Read 2 more answers

A certain library assesses fines for overdue books as follows. On the first day that a book is overdue, the total fine is $0.10.

Irina18 [472]

Answer:

The answer is $0.70.

Step-by-step explanation:

On the first day that a book is overdue, the total fine is $0.10.

For each additional day that the book is overdue, the total fine is either increased by $0.30 or doubled, whichever results in the lesser amount.

So, fine on 1st day overdue = $0.10

Fine on 2nd day overdue = $0.10\times2=0.20$ (this is lesser than the value if $0.30 is added)

Fine on 3rd day overdue = $0.20\times2=0.40$ (this is lesser than the value if $0.30 is added)

So, fine on 4th day overdue will be = $0.40+0.30=0.70$ dollars. (here doubling will give higher value)

So, the answer is $0.70.

3 0

3 years ago