Find the discriminant of the quadratic equation given. use following: 7x2 = 10x +8 number of solutions: nature of solutions: (real or imaginary) number of x intercepts:
we have three similar triangles, because each has a right angle and shares an angle. let's write the angles in order: opposite to short leg, long leg, hypotenuse.
cab similar to bad similar to cbd
or as ratios,
ca: ab: cb = ba: ad: bd = cb: bd: cd
we also know
ac = ad + cd
(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd
(ad+cd)/cb=cb/cd
we have cb=6, ad=5 and seek x=cd.
we reject the negative root and conclude x=4
answer: 4
Answer from: Quest
hello 0xxbadwolfxx0,
2.6 x 10^9 is 2,600,000,000.
1.3 x 10^2 is 130
multiplying 130 and 2,600,000,000 would simply give you 200,000,000,000.
therefore, the answer would be d. 2.0 × 10^11.
i hope i ! warm regards, mae.
Answer from: Quest
720 oranges were included in this shipment!
Answer from: Quest
the rate of change is 25
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