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3 years ago

A circle has the equation 2x2+12x+2y2−16y−150=0.

Mathematics

1 answer:

astra-53 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

hello :

2x²+12x+2y²−16y−150=0

divide by 2 : (x²+6x)+(y²-8y)-75 =0

(x²+6x+9)-9+(y²-8y+16)-16-75 =0

(x+3)²+(y-4)² =10²

The coordinates of the center are (−3,4), and the length of the radius is 10 units.

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If 8x -2=-9+7x,what is the value of 4x-4?

Dimas [21]

Well if my math is correct, x= -7, meaning 4x-4= (4*-7)-4. That equals -32.

Hope this helps.

7 0

3 years ago

Solve the following system:<br> Y = x -2<br> 2x + y = 5

Veronika [31]

Answer:

x = 7/3

y = 1/3

Step-by-step explanation:

y = x - 2.... (1)

2x + y = 5.... (2)

Rearranging equation (2), we have

y = -2x +5 .... (3)

Let's multiply equation (1) by 2 so that we can easily simplify by substitution.

Therefore, it becomes 2y = 2x - 4 ... (4)

We add equation (3) and (4)

3y = 1

y= 1/3

Now, substitute (y= 1/3) in equation 1

It becomes:

1/3 = x - 2

x = 1/3 + 2

Simplifying with a LCM of 3

x = (1 plus 6, all over 3)

= 1+6/ 3

= 7/3

3 0

4 years ago

Which function is represented in this graph

klemol [59]

Answer:

C. f(x) = |x + 5| - 1

6 0

3 years ago

Whats the largest even 6-digit different number ?

Alona [7]

Answer:

What does the question even mean?

is it like "What is the largest even 6-digit number?"

If it is so.. then,

999998...

7 0

3 years ago

A person leaves her camp at 7:00 a.m. to hike back to her car. The distance from the car in kilometers y after x hours of hiking

FromTheMoon [43]

Answer:

The x axis in the function represents, the number of hours after 7:00 A.M. , the person reaches her car. The person reaches the car at 1:00 P.M.

Step-by-step explanation:

The x axis denotes the no. of hours and and the y axis denotes the distance from the car.

X Intercept is a point where the line intersects the X axis, we can easily notice the fact that at that point, y=0 ie. The person has reached his/her respective car.

The line intersects x at 6.

Therefore, a total of 6 hours are taken from the beginning of the hike.

Thus, the person reaches the car at 1:00 P.M.

6 0

3 years ago