Question

No.1 Solve the following questions.
1. If X= -3 then x^3 +27 is?

2. Add 3xy and -7xy.

3. Subtract 64xyz from 4xyz.

4. Find the supplementary and complementary angle of 50°.

5. Add 9x+3 and -8x-4.​

Answer 1

Step-by-step explanation:

1. -3 x 3+27 is 18

2. 10xy

3. -60xyz

4. supplementary angles is 130 degree and complementary angles is 40 degree

5. x+-1

Answer 2

Step-by-step explanation:

1) X= -3

then x³ + 27

= -3³ + 27

= -27 ( because -3³ = -3³×-3³×-3³= - 27) + 27

= 0

2) 64xyz - 4xyz

= 60

3) supplementary angles are whose sum = 180°

so

50° + x = 180°

x = 180-50

x= 130° so supplementary angle of 50° = 130°

complementary angle are whose sum 90°

so complementary angle for 50° = 40°

4)