Which of the following points lies on the circle whose center is at the origin and whose radius is 5? a (-3, 4) b (1, -2) c (, )

Answer with explanation:

Equation of Circle having Center, (a,b) and , radius =r units , is written as

 →→(x-a)²+(y-b)²=r²

Equation of circle ,having center at the Origin and radius =5 units will be equal to:

  →→ (x-0)²+(y-0)²=5²

⇒x² + y²=25

If, you substitute, x=-3. and , y=4 ,in the above equation

L HS= (-3)² +4²

     = 9 + 16

     = 25

=R HS

So, Point , (-3,4) lies on the circle.

Option A: (-3,4)

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0