All categories

3 years ago

Can someone please help me, I don’t know how to do it, and my test is due today

Mathematics

1 answer:

tresset_1 [31]3 years ago

4 0

Answer:

what's the question? :/

You might be interested in

Find the equation of a circle that has a diameter with the endpoints given by the points A(-4,9) and B (- 2, - 3) )

Aleksandr-060686 [28]

The equation of the circle is $(x+3)^{2}+(y-3)^{2}=37$

Explanation:

Given that the endpoints of the circle are A(-4,9) and B(-2,-3)

We need to determine the equation of the circle.

Center:

The center of the circle can be determined using the midpoint formula,

$Center=(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

Substituting the coordinates A(-4,9) and B(-2,-3), we get,

$Center=(\frac{-4-2}{2},\frac{9-3}{2})$

$Center=(\frac{-6}{2},\frac{6}{2})$

$Center=(-3,3)$

Thus, the center of the circle is (-3,3)

Radius:

The radius of the circle can be determined using the distance formula,

$r=\sqrt{\left(x_{2}-x_{1}\right)^{2}+\left(y_{2}-y_{1}\right)^{2}}$

Substituting the center (-3,3) and the endpoint (-4,9), we get,

$r=\sqrt{\left(-4+3\right)^{2}+\left(9-3\right)^{2}}$

$r=\sqrt{\left(-1\right)^{2}+\left(6\right)^{2}}$

$r=\sqrt{1+36}$

$r=\sqrt{37}$

Thus, the radius of the circle is $\sqrt{37}$

Equation of the circle:

The standard form of the equation of the circle is given by

$(x-a)^{2}+(y-b)^{2}=r^{2}$

where (a,b) is the center and r is the radius.

Substituting the values, we have,

$(x+3)^{2}+(y-3)^{2}=(\sqrt{37})^{2}$

$(x+3)^{2}+(y-3)^{2}=37$

Thus, the equation of the circle is $(x+3)^{2}+(y-3)^{2}=37$

7 0

3 years ago

Louann is shopping at a Columbus day sale. She spent $276.66 on a new Michael Kors handbag. If it was on sale for 25% off the re

cupoosta [38]

I'm taking a guess that regular price would be $1,106.64 plus the 6% tax

3 0

3 years ago

Can someone please help me? I keep losing points...

Setler79 [48]

Answer:

14,400

Step-by-step explanation:

i=prt

p=40,000

r=0.09 have to turn percent to decimal

t=4

(40,000)(0.09)(4)

7 0

4 years ago

Read 2 more answers

There is an unknown number of people at the beginning of lunch. Then...

Sloan [31]

Answer:

5.25

Step-by-step explanation:

4 0

3 years ago

Which table does NOT represent a function? A) A B) B C) C D) D

Taya2010 [7]

Answer:

Step-by-step explanation:

there is more than one X of the same number

6 0

3 years ago