Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 2 sin(x), y = 2 cos(x), 0 ≤ x ≤ π/4; about y = −1

only 10/60 isn't equivalent

hope this : )

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

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.