Find Y

A: 14.3
B: -6.3
C: 7.0
D: 11.6

D

Step-by-step explanation:

Using the sine ratio in the right triangle

sin51° = = ( multiply both sides by y )

y × sin51° = 9 ( divide both sides by sin51° )

y = ≈ 11.6 ( to 1 dec. place ) → D

step-by-step explanation:

a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 2 times the age of the child?

******************

this needs to be the answer format, or else your answer is incomplete.

if the number of years is x, then the equation is

in __ years

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.