What type of star has an absolute brightness of 5 and a surface temperature around 3,000 °c?

a. supergiant
b. giant
c. main sequence
d. dwarf

the answer is D.dwarf

~batmans wife dun dun dun...aka ~serenitybella

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

f(x) = y

f(-3) = -5

step-by-step explanation: