1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Degger [83]
3 years ago
12

Find the discriminat 2x^2 + 8x - 9 = 0

Mathematics
1 answer:
alexandr402 [8]3 years ago
3 0

Answer:

2x^2 + 8x - 9 = 0

2x^2 + 8x = 9

2x^2 + x = 9/8

x^2 + x = 9/8×2

x^2 + x = 9/16

2x = √9/16

x = √9/32

You might be interested in
which second degree polynomial function has a leading coefficent of -1 and a root 4 with multuplicity 2?​
zavuch27 [327]

Answer:

-x^2 + 8x - 16.

Step-by-step explanation:

That would be -1(x - 4)^2.

= -(x^2 - 8x + 16)

= -x^2 + 8x - 16.

3 0
3 years ago
Fill in the blanks. Factor x 10=9x20=factor
sertanlavr [38]
The answer is x=1.00
4 0
3 years ago
Drag each title to the correct box. Not all tiles will be used
mestny [16]

Answer:

4, 1, 6.

See explanation

Step-by-step explanation:

You are given the equation

d=vt-\dfrac{1}{2}at^2

First subtract vt from both sides:

d-vt--\dfrac{1}{2}at^2

and multiply the equation by -1:

vt-d=\dfrac{1}{2}at^2\ \ \ \ (1)

Now multiply (1) by 2:

2(vt-d)=at^2\ \ \ \ \ (2)

At last, divide by a

t^2=\dfrac{2(vt-d)}{a}\ \ \ \ \ (3)

5 0
3 years ago
What is 7+(-7)=? Help me plis
Feliz [49]

<em>Hey</em><em>!</em><em>!</em>

<em>Here</em><em>'s</em><em> </em><em>your</em><em> </em><em>answer</em>

<em>7</em><em>+</em><em>(</em><em>-</em><em>7</em><em>)</em>

<em>=</em><em>7</em><em>-</em><em>7</em>

<em>=</em><em>0</em>

<em>so</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>0</em>

<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

6 0
3 years ago
Read 2 more answers
find how long it takes (in seconds) for a car to travel when the car is going a speed of 20mph on a 100 foot track.
Nesterboy [21]

Answer:

3.4 seconds

Step-by-step explanation:

First, you have to change 20mph to feet per seconds. To do this, multiply mphs by 1.4667. When you multiply 20mph by 1.4667, you get 29.3333 fps.

Divide 100 by 29.333 to get 3.40909478 (3.4) seconds

7 0
3 years ago
Read 2 more answers
Other questions:
  • A concert venue wants to project profit from sales of souvenirs at the upcoming weekend concert. Based on past data, 65% of patr
    7·2 answers
  • Alice and her friend want to meet for lunch at a point halfway between their homes. Alice's home can be represented by the point
    14·2 answers
  • Is the quotient for 277.2 / 0.7 greater than or less than 277.2? Explain.
    7·1 answer
  • HLP answer question below plz
    12·2 answers
  • Find the domain of:<br> F(x)= x^2-4/2x^3-32x
    6·2 answers
  • the scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation of 9. A failing grade on th
    14·1 answer
  • Question 4 Choice Worth 4 point
    11·1 answer
  • In ΔOPQ, the measure of ∠Q=90°, the measure of ∠P=79°, and QO = 8.5 feet. Find the length of OP to the nearest tenth of a foot.
    13·1 answer
  • Janaya buys a postcard from each travel destination she visits. Before starting her travels this year, Janaya had 20 postcards.
    15·1 answer
  • Draw a number line please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!