Answer:
30°
Step-by-step explanation:
<4=<2=30
(vertical opposite angles are equal)
-4x - 11 = 2(x - 3x) + 13
-4x - 11 = 2x - 6x + 13
-4x - 11 = -4x + 13
-4x + 4x = 13 + 11
0 = 24...incorrect......no solutions for this problem
Let x = number of long sleeve shirts
Let y = number of short sleeve shirts
x + y = 200
x/2 + y/3 = 80
Now solve this pair of simultaneous equations to find x and y.
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