Multiply the following using the vertical multiplication method: 3x2 -5x +1
xx + 2x + 4
O A. 3x4 + x +3x2 - 18x + 4
O B. 3x4 + x2 +10x2 - 18x+ 4
O C. 3x4 – x2 + 3x2 +18x + 4
O D. 3x4 + x + 10x2 + x + 4

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.

the answer is 3/2 and for decimal: 1.5

hope i

-lavira: )

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.