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2 years ago

F(x)= x^2-72x+420/x^2-23x-210, find y intercept

Mathematics

1 answer:

beks73 [17]2 years ago

6 0

Answer:

y intercept: (1.1494621,0)

Step-by-step explanation:

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A certain circle can be represented by the following equation. x^2+y^2+18x+14y+105=0 What is the center of the circle? What is t

Gre4nikov [31]

Answer:

See below.

Step-by-step explanation:

Recall the equation for a circle:

$(x-h)^2+(y-k)^2=r^2$ , where (h,k) is the center and r is the radius.

We need to turn the given equation into the above format. We do this by completing the square.

First, group them:

$(x^2+18x)+(y^2+14y)=-105$

For the first section, complete the square for $x^2+18x$ :

$x^2+18x+81-81$

$(x+9)^2-81$

Do the same for the second:

$y^2+14y$

$y^2+14y+49-49$

$(y+7)^2-49$

All together:

$((x+9)^2-81)+((y+7)^2-49)=-105$

$(x+9)^2+(y+7)^2-130=-105$

$(x+9)^2+(y+7)^2=25$

The center is (-9,-7).

The radius is $\sqrt{25}=5$

5 0

2 years ago

There are 3 answers FYI.

harina [27]

Answer:

cool i think there are 4 questons

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

How do you find a square root of a decimal?

vova2212 [387]

Step-by-step explanation:

You have to take the decimals to whole number my multiplying it in tens, and then divided by the number of multiples you multiplied it by, also in tens.

After these, take. the square root of the resulting fraction

8 0

2 years ago

1 = -3(x + 4)<br> What’s the answer

irina [24]

1=-3x-12
13=-3x
3x=-13
X=-4.33333
Brainliest please? Thanks!

7 0

3 years ago

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What are numbers called that are the same distance from 0 but in opposite directions

aliya0001 [1]

Opposites are the same difference from zero!

3 0

2 years ago