Which of the following relations is a function? {(–7, 6), (6, –7), (–7, 9), (10, 3)} {(5, –4), (–4, 5), (–5, 4), (4, –5)} {(2, –3), (–3, 2), (2, 3), (–2, 3)} {(8, –5), (–5, 8), (–5, –8), (–8, 5)}

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1

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.

ιт ιѕ 6 6/23

step-by-step explanation:

нσρє ι ¢συℓ∂ нєℓρ уσυ συт