SAT, 25.10.2021 23:30 browndalton55
A student solves the following equation for all possible values of x: StartFraction 8 Over x 2 EndFraction = StartFraction 2 Over x minus 4 EndFraction His solution is as follows: Step 1: 8(x – 4) = 2(x 2) Step 2: 4(x – 4) = (x 2) Step 3: 4x – 16 = x 2 Step 4: 3x = 18 Step 5: x = 6 He determines that 6 is an extraneous solution because the difference of the numerators is 6, so the 6s cancel to 0. Which best describes the reasonableness of the student’s solution? His solution for x is correct and his explanation of the extraneous solution is reasonable. His solution for x is correct, but in order for 6 to be an extraneous solution, both denominators have to result in 0 when 6 is substituted for x. His solution for x is correct, but in order for 6 to be an extraneous solution, one denominator has to result in 0 when 6 is substituted for x. His solution for x is incorrect. When solved correctly, there are no extraneous solutions.
Answers: 3
SAT, 26.06.2019 02:00, lilyforeman5867
When your working with the passage-based reading questions on the psat do all of the following except. a)make sure you read each question throughly. b) try to answer each question before you look at the answers. c) plan to spend most of your time reading the passage. d) make sure your answer choice is the most correct number me
Answers: 1
SAT, 27.06.2019 07:30, turtle12102
Dna is a polymer of which consist of a sugar, a phosphate group, and a a. amino acids; nucleotide b. nucleic acids; nucleotide c. nucleotides; nitrogenous base d. nucleotides; nucleic acid e. proteins; nucleotide
Answers: 2
A student solves the following equation for all possible values of x: StartFraction 8 Over x 2 EndFr...
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