Mathematics, 29.11.2019 13:31 Uhmjujiooo4220
Find the error, rashid and tia solve the quadratic equation (2x2-8x +10=0) by completing the square. who is correct? explain your reasoning.
rashid
2x^2β8x+10=0
2x^2β8x=β10
2x^xβ8x+16=β10+16
(xβ4)2=6
xβ4=Β±6ββ
x=4Β±6ββ
tia
2x^2β8x+10=0
x^2β4x=0β5
x^2β4x+4=β5+4
(xβ2)2=β1
xβ2=Β±i
x=2Β±i
Answers: 1
Mathematics, 21.06.2019 13:00
If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?
Answers: 3
Mathematics, 21.06.2019 15:00
Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8
Answers: 1
Mathematics, 21.06.2019 16:10
Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.
Answers: 1
Find the error, rashid and tia solve the quadratic equation (2x2-8x +10=0) by completing the square....
Health, 17.10.2020 06:01
Mathematics, 17.10.2020 06:01
Mathematics, 17.10.2020 06:01
Mathematics, 17.10.2020 06:01
Biology, 17.10.2020 06:01
Business, 17.10.2020 06:01