Answer: x=2+√2 or x=2−√2
Step-by-step explanation:
The answer can be 4
4 - 3 = 1
Z + Y = a right angle so need to equal 90 degrees:
Find Z & Y:
2b + 6 + 3b -1 = 90
5b +5 = 90
5b = 85
b = 85/5
b = 17
Z = 2(17) +6 = 34+6 = 40 degrees
Y = 3(17) - 1 = 51 - 1 = 50 degrees
Y & W make a straight line so need to equal 180:
W = 180 - 50 = 130 degrees.
Z & X make a straight line so need to equal 180:
X = 180 - 40 = 140 degree.
Answer:
see below
Step-by-step explanation:
The "fundamental theorem of algebra" tells you the number of roots of a polynomial is equal to its degree. This includes real and complex roots and counts repeated roots the number of times they are repeated. (Real numbers are a subset of Complex numbers, so the choice of "complex" for this problem is appropriate.)
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The given quadratic can be solved using the quadratic formula:
for ax²+bx+c=0, the solutions are
... x = (-b±√(b²-4ac))/(2a)
Here, a=2, b=-4, c=-1, so ...
... x = (4 ±√(16 -4·2·(-1)))/(2·2)
... x = (2±√6)/2
Answer:
A. Mg
Step-by-step explanation:
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