Hoping the images i attached below help!!
ANSWER

EXPLANATION
Recall that,

But we were given that,

and

We substitute these values into the above formula to obtain,

This implies that,

This simplifies to,


So we can now find

We use the same formula again,

We substitute the values to get,

We multiply out to get,
75+d=110 subtract 75 from both sides
d=$35
So she needs to deposit at least $35 to be able to pay the electric bill.
Answer:
Step-by-step explanation:
height of triangle=√(11²-8.6²)=√(11+8.6)(11-8.6)=√(19.6×2.4)
=√(4×4.9×4×0.6)=4√(4.9×0.6)=4√2.94
area of triangle=1/2 bh=1/2×2×8.6×4√2.94
=34.4×√2.94
≈58.984