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, 20.06.2019 18:04
30 points! i am confused. what does it mean by game time? you can use a table of random numbers or a random number generator to create random samples. also, you can obtain random samples directly using wolframalpha.com. for example, typing in randomsample[{1,2,3,4,5},2] will give you a sample of size 2 from the list {1,2,3,4,5}. a sample result is {1,5}. refreshing the page will generate a new random sample of size 2. 2. create five random samples of size two from the population. record the game times for the samples and calculate the mean game time of each sample. 3. create 5 random samples of size 11 from the population. record the game times for the samples and calculate the mean game time of each sample.
Answers: 2
Mathematics, 21.06.2019 17:30
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Answers: 3
Mathematics, 21.06.2019 21:00
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