subject
Mathematics, 19.08.2019 14:30 aliviadushane

1) solve by using the perfect squares method. x2 + 8x + 16 = 0
2) solve. x2 – 5x – 6 = 0
3) what value should be added to the expression to create a perfect square? x2 – 20x
4) solve. x2 + 8x – 8 = 0
5) solve: 2x2 + 12x = 0
6) solve each problem by using the quadratic formula. write solutions in simplest radical form. 2x2 – 2x – 1 = 0
7) calculate the discriminant. x2 – x + 2 = 0
8) calculate the discriminant and use it to determine how many real-number roots the equation has. 3x2 – 6x + 1 = 0
9) without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis. y = 2x2 + x – 3
10) without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis. y = x2 – 12x + 12

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
How can a researcher test the validity of cross-population generalizations?
Answers: 2
question
Mathematics, 21.06.2019 14:20
Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions
Answers: 2
question
Mathematics, 21.06.2019 17:00
Which inequality comparing two of the expressions is true when 0.7 < x < 0.9
Answers: 1
question
Mathematics, 21.06.2019 19:30
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
You know the right answer?
1) solve by using the perfect squares method. x2 + 8x + 16 = 0
2) solve. x2 – 5x – 6 = 0
Questions
question
English, 21.09.2020 02:01
question
Mathematics, 21.09.2020 02:01
Questions on the website: 13570824