Step-by-step explanation:
a)2×30=60J
b) 1.25×0.28 = 0.35J
m∠BCD= m∠ACB ÷ 2 = 134.76° ÷ 2 = 67.38°
Ok done. Thank to me :>
Answer:
subtract the exponents:
a^7-2=a^5
1, 4, 6
