
You need to use the equation for adding fractions, which is

In this case, a=-1, b=3, c=-3, d=5.

simplify
answer:
Answer:
Solution given:
y=25 [base side of isosceles triangle]
sin 45=opposite/hypotenuse
sin45=25/x
x=25/sin45
x=25√2
There are no factors of 20 that add up to 7.
Factors of 20 are:
1*20
2*10
4*5
Answer:
it uses 3,600 watts of electricity in 3 hours
<em>(7+5) x 6 + 3 = 75
75 is the answer</em>