He score 48 marks.
This can be found by simply multiplying 80 by 60% (0.6). This will give you your rinal answer of 48.
I hope this helps!
D
using the double - angle identity
cos (2A) = cos² A - sin² A = 2cos² A - 1 = 1 - 2sin² A
the right side = 1 - 2sin² (112.5° ) with A = 22.5°
hence 2A = 2 × 22.5° = 45°
thus cos 45° = 1 - 2sin² ( 22.5°)
Answer:
x=-6
Step-by-step explanation:
Use Substitution
so 5-2x=-4x-7
I'ma move that -4x to the other side by making it a positive
5+2x=-7
than I'ma move that 5 to the other side by making it a negative
2x=-12
to isolate the x you dived by both sides by the 2
x=-6
I doubled checked and it's -6
Answer:
1.6 hours
Step-by-step explanation:
Juts divide the number of minutes by 60 and then round to the nearest tenth
95 ÷ 60 = 1.58333 = 1.6