He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

140°  

Step-by-step explanation:

The reflex angle is the larger of two angles.

reflex + obtuse = 360     Set reflex = 220

 220 + obtuse = 360     Subtract 220 from each side

           obtuse = 140

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step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions