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
svetoff [14.1K]
3 years ago
9

Find the discriminat of each quadratic equation then state the number and type of solutions

Mathematics
1 answer:
Julli [10]3 years ago
8 0
Hello : 
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a <span>≠ 0) is :
</span><span>Δ = b² -4ac
1 )  </span>Δ > 0  the equation has two reals solutions : x =  (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ <span>< 0 : no reals solutions</span>
You might be interested in
Explain the steps that are necessary to solve 4x - 2(x + 3) = x + 1
Sidana [21]
So you would distribute what's in the parenthesis and end up with 4x-2x-6=x+1, then you combine like terms and end up with 2x-6=x+1, now you can add 6 to both sides or subtract 1 both sides (basically anything goes for this step just make sure you apply the same thing on both sides) so I'll add 6 and continue just to show you... then you end up with 2x=x+7 then you subtract 1x on both sides to get x=7. sorry it's a lot hopefully you get it know!
8 0
3 years ago
Read 2 more answers
Find the length of CA to the nearest tenth of a foot
hoa [83]

Answer:

CA ≈ 3.1 ft

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan40° = \frac{opposite}{adjacent} = \frac{BC}{CA} = \frac{2.6}{CA} ( multiply both sides by CA )

CA × tan40° = 2.6 ( divide both sides by tan40° )

CA = \frac{2.6}{tan40} ≈ 3.1 ft ( to the nearest tenth )

3 0
3 years ago
Determine where each point is located in the coordinate plane.
Kisachek [45]

Answer:

Look in the file, I've drew it there!

3 0
3 years ago
Geoff must mentally multiply –5 × 0.75 × 20. Which shows how Geoff could use the associative and commutative properties to make
joja [24]

Answer:

Step-by-step explanation:

–5 × 0.75 × 20 could be rewritten (applying the associative property) as –5 × (0.75 × 20).  I chose this configuration because 0.75 * 20 is 15.  Next, evaluate -5(15).  This is -75.  This matches Answer D.

4 0
2 years ago
Read 2 more answers
Find the equation of the line shown.
vladimir1956 [14]

Answer:

y = - x + 9

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (0, 9) and (x₂, y₂ ) = (9, 0) ← 2 points on the line

m = \frac{0-9}{9-0} = \frac{-9}{9} = - 1

the line crosses the y- axis at (0, 9 ) ⇒ c = 9

y = - x + 9 ← equation of line

4 0
2 years ago
Read 2 more answers
Other questions:
  • 1/5,6/30 tell if it forms a porportion
    14·1 answer
  • Simplify the expression where possible.<br><br> (-5x2)^3
    10·1 answer
  • -8(7 + x) = 137<br> What can be used to solve this problem
    15·1 answer
  • F(x) = 4x +11; [-6, 0]<br> The domain of f(x) is
    14·1 answer
  • Which of the following equations , in it's simplest form , will be equivalent to 3x+2+(-5)?
    5·1 answer
  • For which inequality is x = 5
    5·1 answer
  • SOMEONE ANSWER QUICK !!
    10·2 answers
  • 7x7+4x7x7x7x7x7x7x7x7x7x7x7x7x4097x6=
    14·2 answers
  • 13=d÷6 Solve this pleaseeeee
    12·1 answer
  • GIVING BRAINLIEST!! FAST-
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!