What is the equation of a circle with center (-3, -5) and radius 4

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  (x +3)² +(y +5)² = 16

Step-by-step explanation:

The equation of a circle with center (h, k) and radius r is ...

  (x -h)² +(y -k)² = r²

Put the given numbers into this equation to get your circle:

  (x -(-3))² +(y -(-5))² = 4²

  (x +3)² +(y +5)² = 16

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b