Question

pls solve these questionsf​

Answer 1

Answer:

1) 2x²-5y²+5x²+9y²-3x²-2y²

= 2x²-3x²+5x²-5y²+9y²-2y²

= 4x²+2y²

2) 24x³+12x²

3)(a)Complement of 75° = 90°-75° = 15°

(b)Supplement of 125° = 180°-125° = 55°

4) 90°­­+70°+50°+x = 360°

x = 360°-210°

x =150°

5)

$Sp = \frac{CP(100+Profit -percentage)}{100} \\\\Sp = \frac{650(100+10)}{100}\\\\Sp = \frac{650(110)}{100}\\\\Sp = \frac{71500}{100}\\\\Sp = 715$

6) y + 125° = 180­°

y = 180­°-125°

y = 55°

x + 55 + 55° = 180°

x = 180°-55°-55°

x = 70°

Hope this helps