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
baherus [9]
3 years ago
5

When using a quadratic equation of the form ax2 +bx+c=0 to find a distance what should be "ignored"

Mathematics
1 answer:
Aleksandr [31]3 years ago
3 0

You should ignore the negative answers because you can't have negative distance. For example, if you are going back 7 feet, you are still going 7 feet. In that situation, the answer would 7 not -7.

You might be interested in
HOW DO U USE A MODEL WHEN USING PERCENTAGES
larisa86 [58]
You can model a percent many ways. Compare fractions, decimals and percents using area models. You can also use a pi chart, bar graph, and so many other graphs when using percentages. Hope this helps you.
4 0
2 years ago
Read 2 more answers
What is 91(3456+9878kh)-3(4564-9087)​
goldfiish [28.3K]
The answer is 328065+ 898898hk hope I helped
6 0
3 years ago
Joey overdraw his account by $48 and has to pay an additional $10 fee. How much does he need to deposit into his account to reac
gogolik [260]

Answer:i believe 58

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
mash [69]

Answer:

The rocket hits the gorund after approximately 10.71 seconds.

Step-by-step explanation:

The height of the rocket <em>y</em> in feet <em>x</em> seconds after launch is given by the equation:

y=-16x^2+165x+69

And we want to find the time in which the rocket will hit the ground.

When it hits the ground, its height above ground will be 0. Hence, we can let <em>y</em> = 0 and solve for <em>x: </em>

<em />0=-16x^2+165x+69<em />

We can use the quadratic formula:

\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

In this case, <em>a</em> = -16, <em>b</em> = 165, and <em>c </em>= 69.

Substitute:

\displaystyle x=\frac{-165\pm\sqrt{(165)^2-4(-16)(69)}}{2(-16)}

Evaluate:

\displaystyle x=\frac{-165\pm\sqrt{31641}}{-32}=\frac{165\pm\sqrt{31641}}{32}

Hence, our solutions are:

\displaystyle x_1=\frac{165+\sqrt{31641}}{32}\approx 10.71\text{ or } x_2=\frac{165-\sqrt{31641}}{32}\approx-0.40

Since time cannot be negative, we can ignore the first answer.

So, the rocket hits the gorund after approximately 10.71 seconds.

7 0
2 years ago
Which is a correct frost step for solving this equation
horsena [70]

Answer:

you have to post the equation

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Simplify (7x−13)−(x+5)
    13·2 answers
  • Which of the following is true about the graph of f(x)=7^x. Select all that apply.
    8·1 answer
  • Idk what to do can someone help?
    13·1 answer
  • In the complex number system, which expression is equivalent to (3 - 5i) - (7 - 81)?
    12·1 answer
  • PLEASE HELP ME I REALLY NEED HELP
    9·1 answer
  • Can Anybody Help me?
    12·1 answer
  • Please help me i don’t understand
    13·1 answer
  • Which statement is true regarding the functions on the
    13·1 answer
  • Miranda is 6 years older than her brother. The sum of their age is 20. What is
    5·2 answers
  • Plz i need help asappppppppp
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!