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
Eduardwww [97]
4 years ago
8

X²-x-12=0 Describe the number and types of roots using the discriminant Show steps please

Mathematics
1 answer:
pickupchik [31]4 years ago
8 0

Answer:

2 real roots

Step-by-step explanation:

The discriminant is b^2 -4ac  where ax^2 +bx -c

If b^2 -4ac > 0 we have 2 real roots

b^2 -4ac = 0 we have 1 real root

b^2 -4ac < 0 we have 2 complex roots

x²-x-12=0

a =1 b=-1  c = -12

(-1)^2 - 4(1)*(-12)

1 +48

49 > 0

2 real roots

You might be interested in
Samuel wrote the equation in slope-intercept form using two points of a linear function represented in a table. Analyze the step
madam [21]

In step 3, he substituted the wrong values for m and b. is the answer.

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME
kolbaska11 [484]

Scientific notation has 1 number to the left of the decimal and is multiplied by 10 raised to the number of spaces the decimal is moved.

A) 5.9 x 10 ^ 9

B) 4 x 10 ^ -2

C) 1 km = 100,000 cm

4x 10^-2 x 100,000 = 4000 fireflies per km = 4 x 10 ^3 fireflies per km

5.9x 10^9 x 4x 10 ^3 = 2.4 X 10^13

3 0
3 years ago
Ms. Peters has 36 red, blue, and green markers. She has an equal number of each color of marker. She arranges the red markers in
Otrada [13]

Answer: 18

Step-by-step explanation: hope this helps!

8 0
3 years ago
Read 2 more answers
Find the GCF of the given polynomial.<br><br> 8x6y5 - 3x8y3
Whitepunk [10]
The GCF of this polynomial is x^6y^3.
8x^6y^5 - 3x^8y^3 = x^6y^3 (8y^2 - 3x^2)

This polynomial cannot be factorized any further. Hope this helps!

6 0
4 years ago
Read 2 more answers
The domain of a function is the domain of its inverse.<br> A. True<br> B. False
notsponge [240]

the domain of a function is the domain of its inverse -- This is False.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Jeremy earns $234 for 36 hours of work. Miguel earns $288 for 40 hours of work . Are the pay rates of these two people proportio
    9·1 answer
  • What is a number 
    14·2 answers
  • Justine earned $30,000 during the first year of her job at city hall .after each year she recieved a 6%raise . Find her total ea
    5·1 answer
  • Explain what mistake was made in the problem below and what should be the
    7·1 answer
  • Decimals between 0.001 and 0.002
    10·1 answer
  • Given the functions: f(x) = 4x + 8 and g(x) = 2x − 3.
    14·2 answers
  • What is the rate in cups of lemon juice per cup of Greek yogurt ??
    14·1 answer
  • 4) What is the sum of the exterior angles of a 32-sided polygon?
    9·1 answer
  • Find the length of segment GH.
    5·2 answers
  • Question refer to the attachment !?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!