Sergio has ppp paintings in his art collection. he and other local painting collectors agreed to donate a total of 484848 paintings to the local museum. each of the 121212 collectors will donate the same number of paintings. how many paintings will sergio have in his art collection after his donation?

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

(23*2)-12=x     x=34

step-by-step explanation: