Answer:
C
Step-by-step explanation:
the cos of an angle of 45° is equal to √2/2~=0,7071
Do you want the full explanation?
Answer:
the answer is C.
Step-by-step explanation:
A) 8 + 7 + 5 = 20 parts
b) 220 kg ÷ 20 = 11
c) <span> 8 parts crushed gravel: 8 x 11 = 88 kg
7 parts water: 7 x 11 = 77 kg
5 parts cement: 5 x 11 = 55 kg</span>
Tan205° = .466 tan55° = 1.428 tan25° = .466 -tan25° = " so just tan25