Answer:
hi! your answer should be 42.
Step-by-step explanation:
LHS=(1-sin60)/cos60
=(1-√3÷2)/1÷2
=2(1-√3÷2)
=2-√3
RHS=(1-tan30)/(1+tan30)
={1-(1÷√3)}/{1+(1÷√3)}
={(√3-1)/√3}/{(√3+1)/√3}
=(√3-1)/(√3+1)
={(√3-1)(√3-1)}/{(√3+1)(√3-1)}
=(3-√3-√3+1)/(3-1)
=(4-2√3)/2
=2-√3
Therefore LHS=RHS
We know that he weeds gardens for 15 hours, and mows lawns for x hours.
If he wants to earn $252 per month, we can express the following

Now, we solve for x

<h2>Hence, he has to mow lawns for 13 hours to earn at least $252.</h2>
Answer: 8:15
Step-by-step explanation:
If she leaves at 7:50 and arrives to work 25 minutes later, then she will get there at 8:15.
Something easy you could use:
7:50 25
+ 10 -10
____ ___
8:00 15
+ 15 -15
____ ____
8:15 0
The answer to the problem is x= -4