4a-13=19 add 13 to both sides
4a=32 divide by 4 on both sides
a=8
Quadratic formulat is used when
a^2+bx+c=0
x=

4m^2+3m-1=0
a=4
b=3
c=-1
input
x=

x=

x=

x=

x=

or

x=-1 or 1/4
7(4(1/2))+3(5(1/3))+2(-3(1/2))=
7(4/2)+3(5/3)+2(-3/2)=
7(2)+15/3+-6/2=
14+5-3=
19-3=
16
Answer:
while installing a window in an older home, you find that the measurements are not square and will need to shim one side. you find a packet of shims that have 0.25 inch marked on the outside of the wrapper. What fraction of an inch is 0.25, reduce to its lowest terms 0.30
Step-by-step explanation: