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mash [69]
3 years ago
8

Need help? Step by step solving?

Mathematics
1 answer:
Harrizon [31]3 years ago
8 0

Step-by-step explanation:

=4+5-6

=9-6

=3d^2

plzzzz mark me brainliest if it helps you then

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Given the function y=1/2x-2 and the domain {-1,0,1}, what is the range of the function?
Marina86 [1]
I have no idea good question though 69=y
4 0
3 years ago
If the endpoints of the diameter of a circle are (−8, −6) and (−4, −14), what is the standard form equation of the circle? A) (x
Andrei [34K]

Answer:

\large\boxed{A.\ (x+6)^2+(y+10)^2=20}

Step-by-step explanation:

The standard form of an equation of a circle:

(x-h)^2+(y-k)^2=r^2

(h, k) - center

r - radius

We have the endpoints of the diameter of a circle (-8, -6) and (-4, -14).

The midpoint of a diameter is a center of a circle.

The formula of a midpoint:

\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)

Substitute:

x=\dfrac{-8+(-4)}{2}=\dfrac{-12}{2}=-6\\\\y=\dfrac{-6+(-14)}{2}=\dfrac{-20}{2}=-10

We have h = -6 and k = -10.

The radius is the distance between a center and the point on a circumference of a circle.

The formula of a distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Substitute (-6, -10) and (-8, -6):

r=\sqrt{(-8-(-6))^2+(-6-(-10))^2}=\sqrt{(-2)^2+4^2}=\sqrt{4+16}=\sqrt{20}

Finally we have

(x-(-6))^2+(y-(-10))^2=(\sqrt{20})^2\\\\(x+6)^2+(y+10)^2=20

5 0
3 years ago
Read 2 more answers
PLEASE HELP ME OUT (geometry)
jekas [21]

Answer:

x =60 ° angles on a straight line

y+25° =120° exterior angle of the triangle

y=120°-25°=95°

y =95 °

4 0
2 years ago
How long does it take Jennifer to ride her bicycle to Eileen's house, if she travels at a rate of 8 mph and there is a distance
ludmilkaskok [199]
30 minutes
Because it would take her an hour to go 8 miles and she is only going 4 so it is half an hour
6 0
3 years ago
Plz help..................refresh page before u answer
klio [65]
Your answer is xy-1<span><span>
</span></span><span>=<span><span><span><span>4<span>x2</span></span><span>y2</span></span>−<span><span>4x</span>y/</span></span><span><span>4x</span>y
</span></span></span><span>=<span><span><span><span>4x</span>y</span>−4/</span>4
</span></span><span>=<span><span>xy</span>−<span>1
</span></span></span>Hope this helps!
5 0
3 years ago
Read 2 more answers
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