A quics way to do this :-
9C5 = 9*8*7*6*5 3 * 7 * 6 = 126
------------- =
5*4*3*2*1
Angle B= 45 degrees
Angle A = 45 degrees
A and B are congruent since they are alternate exterior angles
5x-15 = 2x +21
5x = 2x +36
3x=36
X=12
B)
2x12+21 = 45
A)
5x12-15 =45
Answer:
is this good?? i mean is it correct
Units. cause square units are for area and cubic units are for volume.
I hope this helps you
x^2/2+12x/2+10/2=0
x^2+12x+10=0
ax^2+bx+c=0
disctirminant =b^2-4ac
x1,2=-b (-,+) square root of disctirminant /2a
a=1 b=12 c=10
disctirminant = 12^2-4.1.10=144-40=104
x1= -12+square root of 104/2
x2= -12- square root of 104/2
