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
slamgirl [31]
3 years ago
8

9. Solve x2 + 4x + 6 = 0 by graphing

Mathematics
1 answer:
Westkost [7]3 years ago
5 0

Answer:

No Real Solutions

Step-by-step explanation:

You could solve this through graphing, or you could reason that the discriminant is 16 - 4(4)(6) = -80, so there are no real solutions

You might be interested in
A particular math test has eight questions and a perfect paper is worth 100 percentage points. What is the rate of change of the
Ostrovityanka [42]
100/8 = 12.5
The rate of change is 12.5
4 0
3 years ago
The Punic Wars began in 264 B.C. and ended in 146 B.C. How long did the Punic Wars last??
pishuonlain [190]

Answer:

The first two wars were long—23 years and 17 years, separated by an interval of 23 years. The third war lasted nearly three years. It started 52 years after the end of the second war. All three wars were won by Rome, which subsequently emerged as the greatest military power in the Mediterranean Sea.

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Plzz help ... I'm thinking it's either c or d
iren [92.7K]
Looking at the slope of the "best-fit" line, you can see that for every two hours of homework, 15 more points are scored. (compare t=0 to t=2).

For t=5, the line seems to go through 47.5. So for t=7, which is two hours more, you'd expect a score of 47.5+15 = 62.5. 

That answer is in the list, so I'd choose that.

In reality, you would never be able to have any score you like just by putting more hours in, so this can never be a straight line forever...
5 0
3 years ago
Read 2 more answers
Find a quadratic equation with roots -1, 4i and -1 - 4i
vazorg [7]
\bf \textit{difference of squares}
\\\\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)
\\\\\\
\textit{also recall that }i^2=-1\\\\
-------------------------------\\\\
\begin{cases}
x=-1+4i\implies &x+1-4i=0\\
x=-1-4i\implies &x+1+4i=0
\end{cases}
\\\\\\
(x+1-4i)(x+1+4i)=\stackrel{y}{0}
\\\\\\\
[(x+1)~~-~~(4i)][(x+1)~~+~~(4i)]=y
\\\\\\\
[(x+1)^2~~-~~(4i)^2]=0\implies (x^2+2x+1)~-~(4^2i^2)=y
\\\\\\
(x^2+2x+1)~-~(16\cdot -1)=y\implies (x^2+2x+1)~-~(-16)=y
\\\\\\
x^2+2x+1~~+16=y\implies x^2+2x+17=y
3 0
3 years ago
Michael works 30 hours per week and makes $15.00 per hour. How much does he make in a 4-week month?
Wewaii [24]

Answer:

$1,800

Step-by-step explanation:

If Michael works 30 hours a week for $15 an hour we can use the equation:

15 x 30 = 450.

Now just multiply the given answer by 4 and you're left with:

450 x 4 = 1800.

4 0
3 years ago
Other questions:
  • 1) g(x) = -x - 3<br> h(x) = x + 5<br> Find (g + h)(x)
    15·2 answers
  • Item: Circle D has a radius of 16 inches and right central angle, _EDF. Find the exact length of EF.
    5·1 answer
  • A ball is thrown from a height of 110 feet with an initial downward velocity of 6/fts. The ball's height h (in feet) after t sec
    9·1 answer
  • Can someone remind me how to do an equation like y=4x+3 i have a huge exam tomorrow
    12·1 answer
  • What is 27.38 rounded to the nearest wholenumber?
    10·1 answer
  • 69 - v -10 43
    9·1 answer
  • Hasil darab umur
    10·1 answer
  • What is the truth value of "If yesterday was Tuesday then today is Wednesday"
    13·1 answer
  • Find the measure of each angle indicated 12,13,14
    9·1 answer
  • Solve for x. <br> 8x - 2 = 3x + 5x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!