Two sets of quadratic expressions are shown below in three different forms:
Line 1: x2 +...
Mathematics, 23.05.2020 03:57 summer132
Two sets of quadratic expressions are shown below in three different forms:
Line 1: x2 + x − 12 (x + 4)(x − 3) (x + 0.5)2 − 12.25
Line 2: x2 − x − 2 (x + 1)(x − 2) (x − 0.5)2 − 2.5
Which line contains three equivalent expressions? (2 points)
Group of answer choices
Line 1 only
Line 2 only
Both Line 1 and Line 2
Neither Line 1 nor Line 2
Solve 3x2 + 18x + 15 = 0 by completing the square. (2 points)
Group of answer choices
3(x + 3)2 = 6; x = −3 + square root 2 , x = −3 − square root 2
3(x + 9)2 = 12; x = −11, x = −7
3(x + 3)2 = 12; x = −5, x = −1
3(x + 9)2 = 228; x = −9 + square root 76 , x = −9 − square root 76
Quentin attempted to solve a problem by completing the square. Identify the line where he made his mistake. (2 points)
f(x) = 2x2 − 8x + 10
Line 1: f(x) = 2(x2 − 8x) + 10
Line 2: f(x) = 2(x2 − 8x + 16) + 10 − 32
Line 3: f(x) = 2(x − 4)2 − 22
Group of answer choices
Line 1
Line 2
Line 3
He did not make any mistakes
Answers: 3
Mathematics, 21.06.2019 18:30, wiredq2049
Ill mark the brainliest if you me with the these three questions 7,8,9
Answers: 2
Mathematics, 21.06.2019 19:20, alexcarrasco5903
1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?
Answers: 3
Mathematics, 21.06.2019 20:50, RidhaH
Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d
Answers: 1
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