Answer:
160
Step-by-step explanation:
e.g. 5×8 --> 10×16 =160
4×10 --> 8×20 =160
2×20 --> 4×40 =160
Tan x=opposite/adjacent
cot x=adjacent/opposite
so you need to inverse the fraction
tan x=.78 as a fraction is 78/100
-> inversed= 100/78=1.28=cot x
so it is the second option
Answer:
35
Step-by-step explanation:
all are obeying a constant ratio
- copper 81
- tin 14⇒?
- lead 5
- total 100 ⇒250
- ?=250*14/100=35
Answer:
the answer is A
Step-by-step explanation:
