Answer:
A)x=9
Step-by-step explanation:
On the picture
.......
m<XYZ=120° => m<XYZ is an an obtuse angle, but the picture of m<XYZ is an acute angle
Answer:
a) C(x) = 4x + 350
b) 13x; $13
c) 39
Step-by-step explanation:
a) Initial cost of lawnmower = $350
Maintenance cost for 1 lawn = $4
Maintenance cost for x lawns = 4x
Total cost function, C(x) = 4x + 350
b) Revenue = Cost + Profit
= C(x) + P(x)
= 4x + 350 + 9x - 350
= 13x
Charge per lawn = 
= 
c) For Jimmy to make a profit, P(x) must be greater than zero i.e.



The smallest integer value of x that satisfies this inequality is 39. Therefore, Jimmy needs to mow 39 lawns in order to start making profit.
Answer:
y = x - 3
Step-by-step explanation:
4y + 3 = 3y + x
y + 3 = x
y = x - 3
Answer:
4.5
Step-by-step explanation:
<u>tan37° </u> = <u>a</u>
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