2 years ago

I NEED HELP ASAP GEOMETRY 10TH GRADE

Mathematics

1 answer:

prohojiy [21]2 years ago

7 0

Answer:

Step-by-step explanation:

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The circle C has centre A(2,1) and passes through the point B(10,7). Find and equation for C

Semmy [17]

The equation of a circle:
$(x-h)^2+(y-k)^2=r^2$
(h,k) - the coordinates of the centre
r - the radius

$A(2,1) - \hbox{the centre} \\
h=2 \\ k=1 \\ \\
(x-2)^2+(y-1)^2=r^2 \\ \\
\hbox{passes through B(10,7)} \\
x=10 \\
y=7 \\ \\
(10-2)^2+(7-1)^2=r^2 \\
8^2+6^2=r^2 \\
64+36=r^2 \\
r^2=100 \\ \\
\hbox{the equation:} \\ \boxed{(x-2)^2+(y-1)^2=100}$

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3 years ago

A bakery sells mocha cupcakes and chocolate cupcakes. One day it sold 161 mocha

anzhelika [568]

Answer:

35%

Step-by-step explanation:

35% percent of the cupcakes were mocha

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3 years ago

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Which angle of rotation is an angle of rotational symmetry for all figures?