Mathematics, 24.08.2020 02:01 itscheesycheedar
Israel started to solve a radical equation in this way: square root of x plus 6 β 4 = x square root of x plus 6 β 4 + 4 = x + 4 square root of x plus 6 = x + 4 (square root of x plus 6)2 = (x + 4)2 x + 6 = x2 + 8x + 16 x + 6 β 6 = x2 + 8x + 16 β 6 x = x2 + 8x + 10 x β x = x2 + 8x + 10 β x 0 = x2 + 7x + 10 0 = (x + 2)(x + 5) x + 2 = 0 x + 5 = 0 x + 2 β 2 = 0 β 2 x + 5 β 5 = 0 β 5 x = β2 x = β5 Solutions = β2, β5 What error did Israel make? A. He subtracted 6 before subtracting x. B. He added 4 before squaring both sides. C. He factored x2 + 7x + 10 incorrectly. D. He did not check for extraneous solutions.
Answers: 1
Mathematics, 21.06.2019 13:00
How can we find the measure of an exterior angle if we know the measurement of an interior angle
Answers: 2
Mathematics, 21.06.2019 21:40
Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.
Answers: 3
Mathematics, 21.06.2019 22:30
Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friendβs parents for your ! β€οΈ
Answers: 2
Israel started to solve a radical equation in this way: square root of x plus 6 β 4 = x square root...
Biology, 05.05.2020 01:23
Mathematics, 05.05.2020 01:23
English, 05.05.2020 01:23
English, 05.05.2020 01:23
Mathematics, 05.05.2020 01:23
Computers and Technology, 05.05.2020 01:23
History, 05.05.2020 01:23
Mathematics, 05.05.2020 01:23
Mathematics, 05.05.2020 01:23
Geography, 05.05.2020 01:23