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Rznlgo
Answered

Evaluate each of the following

1. 7x - 9y when x = -5 and y = 6

2. 4/5 (xz/y) when x = 8 , y = 6 and z = -4

3. 5/4πs³ when s = 20 and π = 3.14

4.5a³ - 9b + 6c when a = -4 , b = 2 and c = 0

5. x - ay + 22 when a = -5 , x = 2 and y = 4​

Sagot :

John060404go

Step-by-step explanation:

1. 7x-9

7(-5)-9(6)

-35-54

-89

5. x-ay+22

2-(-5)(4)+22

2-20+22

2+2

4

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