Answer:
only first equation is an identity
Step-by-step explanaition
so in the first equation it shows the word sin 2 0. this means that it is definitely an equality however tan is not
Answer:
1a. Yes
1b. No
1c. Yes
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
Since ,
Wire of Length 36 cm is bent to form a square so,
perimeter of the square = Length of the wire
Hence, perimeter of the square = 36cm
Therefore, one side of the square = 36 cm ÷ 4
= 9 cm
So area of the square = side × side = 9 cm × 9cm

25/10=2.5
10%=2.5
5%=1.25
15%=3.75
£3.75= Mattie
£5=Ted
Ted is charging more
Answer:
210km
Step-by-step explanation:
1h...........90 km
2h...........2*90=180 km
20min=60min/3.........90km/3=30 km
2h 20min.......180+30=210km