3 years ago

[ls help me on this

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

4 0

Help you on what?i do not see anything

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Emily and a friend bought two tickets to see a soccer game. Each ticket cost $8.25. The friends paid a total of $24.50, which in

Helga [31]

A)each friend payed $4 for the parking fee.
B)0.08%

8 0

3 years ago

The equation of a circle is x^2 + y^2 -4x + 2y -11 =0 . What are the center and the radius of the circle? Show your work.

stira [4]

Answer:

Center: (2,-1)

Radius: 4 units

Step-by-step explanation:

Equation of the circle in standard form is:

$x^{2}+y^{2}+2gx+2fy+c=0$

The radius of this circle is located at (-g, -f) and its radius is equal to:

$r=\sqrt{g^{2}+f^{2}-c}$

The given equation of circle is:

$x^{2}+y^{2}-4x+2y-11=0$

Re-writing this equation in a form similar to the standard equation:

$x^{2}+y^{2}+2(-2)x+2(1)y-11=0$

Comparing this equation with standard equation we can say:

g= -2

f = 1

c = -11

So, the center of the circle will be located at (-g, -f) = (2, -1)

And the radius will be = $\sqrt{g^{2}+f^{2}-c} =\sqrt{(-2)^{2}+(1)^{2}-(-11)} =\sqrt{16} =4$

Thus the radius of the given circle is 4 units.

7 0

3 years ago

Write a polynomial function in standard form with zeros at 0, 1, and 2.

Nikitich [7]

Answer:

the first one is correct

6 0

2 years ago

colleen purchased a large bag of apple. She used 1/2 of them to make applesauce. of those she had left,she used 3/4 to make an a

Brut [27]

I think the answer is 4 1/4

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3 years ago

Find the area of the trapezoid.

butalik [34]

Answer:

8 ft

Step-by-step explanation:

t = a + b/2 times 2

2 + 6 = 8

8/2 = 4

4 x 2 = 8

8 0

2 years ago