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34kurt
3 years ago
8

The center of a circle is at (−5, 2) and its radius is 7. What is the equation of the circle?

Mathematics
1 answer:
Rainbow [258]3 years ago
4 0

Answer:

(X+5)^2 + (Y-2)^2 =49

Step-by-step explanation:

Equation of the circle

(X-a)^2+(Y-b)^2= r^2

Center=(-5 ; 2) , so : a= -5 y b=2

y r=7

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Jess says that two of the three points below are on a line through the origin.
Marrrta [24]

Answer:

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6 0
3 years ago
Read 2 more answers
Rico thinks of a number between 30 and 40 that is represented by
Anna007 [38]
Hello,

x,y,z∈ IN

x=\frac{3}{4}*y
y=\frac{1}{3}*z

140
46\leq\ y\ \leq\ 50 ==>\ \frac{46*3}{4}\leq\frac{3y}{4}\leq\frac{50*3}{4}
35\ \leq\ z\ \leq\ 37==>
 x∈{35,36,37}
 y∈{47,48,49}
 z∈{141,144,147}

We must go futher:

if x=35 then y=4*35/3=46.666 not good , not whole
if x=36 then y=4*36/3=48 ok
if x=37 then y=37*4/3=49.333.. not good

So there is only one solution (36,48,144) for (x,y,z)

No problem with z for z=3/1*4/3*x=4x ==>whole.









7 0
3 years ago
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