3x^2 -x -16
a = 3
b = -1
c = -16
x = [--1 +-sqrt(1 -4*3*-16)] / 2*3
x = [1 +- sqrt(193)] / 6
x1 =
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2.4820739982
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x2 =
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-2.1487406649
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Answer:
BE = 49
Step-by-step explanation:
In triangle BDC
65^2=56^2+BD^2
65^2-56^2=BD^2
4225-3136=BD^2
1089=BD^2
33=BD
In triangle FDE
65^2=63^2+DE^2
4225-3969=DE^2
256 = DE^2
16=DE
since ED+DB=BE
THEREFORE
16+33=BE
49=BE
Y=3x-8,5x-8,2x-8,1/3x-8 how to find it is to look at the (x,y) if the equation have the same y (y-intercept)