-3 1/2 -(-12 1/4)
-3 1/2 + 12 1/4
-3 1/2 = -7/2 = -14/4
12 1/4 = 49/4
-14/4 + 49/4 = 35/4
35/4 = 8 3/4
A quick way to convert a mixed number to improper form (improper form makes it alot easier to add, subtract, and more), is like this:
a b/c
((a*c)+b)/c
This will get you the improper form of a fraction.
I hope this makes sense.
Subtract 10 from both sides
-0.035d=4-5
Simplify 4-10 to 6
0.035y=-6
Divide both sides by -0.035.
D=-6/0.035
Simplify
Y=171.42
Step-by-step explanation:
m<C = 90°
According to the laws of cosine,
c²= a²+b²-2ab. cos(C)
c²=a²+b²-2ab.cos(90°)
c²=a²+b²-2ab.0 { cos(90°)= 0}
c²=a²+b²
a²=c²-b²