ramp is 9.4m long and joins two levels, one 3.1m higher than the other find angle that ramp makes with the lower level

The angle ramp make with the lower level is  19.25∘

Step-by-step explanation:

Using the sine function:

sin  θ  =  H e i g h t   D i f ere n c e  / R a mp Length

sin  θ  =  3.1  / 9.4

Taking sine inverse on both sides:

θ  =  s i n − 1  3.1  / 9.4

θ ≈ 19.25 ∘

I hope it helped

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a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation:

2nd one in the first row is correct