The distance around the bulletin board would be 20 feet, because you multiply 6ft 2x and 4ft 2x.
49x2 + 28 xy + 4y2
If those 2s are exponents then here’s ya answer (7x+2y)^2
Answer:
23.63
Step-by-step explanation:
Trust me I know m math
Answer:
21 - i
Step-by-step explanation:
( 5+i ) * ( 4-i ) = 5 * ( 4-i ) + i *( 4-i )
= 5*4 - 5*i + i*4 - i*i
= 20 - 5i + 4i - i²
= 20 - 5i +4i - (-1) { i² = -1 }
= 20 - 5i +4i + 1
= 21 - i