HELP ITS AN EMERGENCY HELP HELP FOR 100 POINTS
1 answer:
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Answer:
- Master Remodeling
Step-by-step explanation:
<em>Original question is attached</em>
<h3>Option 1</h3>- C(x) = 25x + 50
- C(8) = 25*8 + 50 = $250
- As per table, the rate of change is $30 per 2 hours.
- So 8 hours will cost
- $190 + $30 = $220
As we see the second option is cheaper so we should hire the Master Remodeling
Answer:
x = 15
Step-by-step explanation:
Assuming 3x and x-60 are in degrees, you can use:
cos(a) = sin(a+90)
To rewrite the equation as:
sin(3x) = sin(x-60+90)
sin(3x) = sin(x+30)
3x = x+30
2x = 30
x = 15
But, solving 3x = x+30 which simplifies to x=15 is not the only solution to this equation, as you can see in below picture. Finding all solutions is a bit more work, but maybe that is not required in your case.
