Answer:
Step-by-step explanation:
a) 310cos25 = 281 N
b) (620 - 281) / cos-18 = 356 N
Answer:
The trestle meets ground level at 0.875 units and 9.125 units
Step-by-step explanation:
Poorly formatted question.
The given equation is:

Required
The point where the trestle gets to the ground level
To do this, we set 
So, we have:

Multiply through by -1

Solve using quadratic formula:

Where:

So, we have:




Solve the fraction

Split


Answer:
Step-by-step explanation:
180 - 67 = 113
180 - 113 - 42 = 25
α = 25º
64 cm is 640 mm.
Hope this helps!
2075-1195=880$ is the amount of increase
880/1195=0,74 now you only need to multiply with 100
0,74*100=74%
So the price increased by 74%