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
shusha [124]
4 years ago
8

Find the discriminant of the equation. (Show how you got your answer) a. X^2 + 4x + 9 = 0

Mathematics
1 answer:
weeeeeb [17]4 years ago
5 0
The discriminant of the equation is -20. You use the formula( that's how I solved it)

Discriminant formula- b^2 - 4(a)(c)

Work:

4^2-4(1)(9) = -20

The formula for this is the part of the quadratic formula
You might be interested in
Find the GCF of the first two terms and the GCF of the last two terms of the polynomial. 5h^3+20h^2+4h+16
Bas_tet [7]
The GCF of the first two terms: 5h²
The GCF of the last two terms: 4

5h³ and 20h² 

Both of these terms are divisible by 5. (constant)
Both of these terms also have at least 2 h's. (variable)

4h and 16

Both of these terms are divisible by 4. 
Only one term has a variable, so that has to be left out.



6 0
3 years ago
Greg has enough framing to enclose a rectangular photograph with a perimeter of 160 centimeters. If the width of his photograph
kotegsom [21]

Answer:

32cm

Step-by-step explanation:

Let the width be w. Now we know that the width is 16cm less than the length, this means that the length will thus have a total length of w + 16

Now, we know that the perimeter of a rectangle is 2(l + b)

This means 2(w + w + 16) = 160

4w + 32 = 160

4w = 128

w = 128/4 = 32cm

8 0
4 years ago
Whats 12% in a fraction and decimal
Yuki888 [10]
Answer : 0.12 ( decimal ) 12/100 ( fraction )
5 0
3 years ago
Read 2 more answers
PLEASE ANSWERRRRRRRRRRRRRRRRRRR
DochEvi [55]
The answer is B.

I hope this helps!
7 0
4 years ago
What is the expanded form of 3x(x+3)^2?
Dominik [7]
We need to expand the square binomial and then multiply:
<span>3x(x + 3)^2
= 3x(x + 3)</span>(x + 3<span>)
= 3x(x^2 + 6x + 9)
= 3x^3 + 18x^2 + 27x</span>
7 0
4 years ago
Other questions:
  • A game involves rolling a fair six-sided die. If the number obtained on the die is a multiple of three, the player wins an amoun
    12·1 answer
  • Snow is falling steadily in Syracuse, New York. After 2 hours, 4 inches of snow has fallen. If it continues to snow at the same
    10·1 answer
  • The sum of the angles of a triangle is 180 degrees. Angle Bis 10 degrees more than twice the size of angle A. Angle C is 30 degr
    14·1 answer
  • Goldie is depositing checks of $49.37, $328.02, and $18.93 into her checking
    6·1 answer
  • Which is the completely factored form of 12x^3 – 60x2 + 4x – 20?
    5·1 answer
  • amy waters her garden every 4 days and weeds it every saturday amy waters her garden this saturday.How many days will it be unti
    6·1 answer
  • Express 48% as a fraction
    11·2 answers
  • HELP ME WITH THIS!! WILL GIVE BRAINLIST
    13·1 answer
  • Plssssssss help meeeeee
    13·2 answers
  • I need answer quickly
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!