Question

please solve this problem ​

Answer 1

I.

1) (-9) + (6) = -3

2) (-5) × 1 = -5

3) supplementary

4) 0

5) 2/4 of y = 20

1/2 of y = 20

y/2 = 20

II.

6.

a) -6, -3 ( -6 -3 = -9)

b) -15, 5 ( -15 +5 = -10)

7.

1) (-1)×(-2)×(-6)×(3)

2 × (-6)×(3)

-12 ×3

-36

3) a) -30/5 = -6

b) 0/(-12) = 0

4) commutative property of multiplication = a × b = b × a

associative property of multiplication = a× (b×c) = (a ×b) × c

5) a) 2x = 20

x = 20/2

x = 10

b) 3z/10 = 6

3z = 60

z = 60/3

z = 20

6) 2x + 5 = 29

2x = 29 - 5

2x = 24

x = 24/2

x = 12

7) a) 30⁰

sum of complementary angles = 90⁰

30⁰ + x = 90⁰

x = 90 - 30

x = 60⁰

b) 70⁰

70⁰ + x = 90⁰

x = 90 - 70

x = 20⁰

Answer 2

Answer:

don't know????????????????????