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
serg [7]
3 years ago
14

What is the discriminant of 9x2 + 2 = 10x?

Mathematics
2 answers:
Gwar [14]3 years ago
6 0
First get the equation into the form: Ax^2 + Bx + C = 0 (the quadratic equation).. We do this by subtracting 10x both sides (to get it on the other side).. 9x^2 + 2 = 10x 9x^2 - 10x + 2 = 10x - 10x 9x^2 - 10x + 2 = 0 Now the discriminant is: b^2 - 4ac The quadratic equation is Ax^2 + Bx + C = 0 Here, A = 9, B = -10 and C = 2 so plug them in... (-10)^2 - 4 (9)(2) = 100 - 4 (18) = 100 - 72 = 28 <--- answer...
DerKrebs [107]3 years ago
3 0

Answer:

28

Step-by-step explanation:

You might be interested in
Please answer this for me
Bumek [7]

Answer:

422.39 sq cm

Step-by-step explanation:

Find the area of the circle and subtract the area of the rectangle from it.

Circle area: pi*12^2, 144pi sq cm

REctangle area: 10*3=30sq cm

144pi-30≈422.39

7 0
3 years ago
PLZ HELP! I NEED ANSWER ASAP!!!! I WILL GIVE BRAINLIEST!!!!!!Two members of the Math Competition Team solve 13 problems in 1 hou
zhuklara [117]

Answer:

230

Step-by-step explanation:

4 0
3 years ago
Use the Pythagorean theorem to find the length of the hypotenuse in the triangle shown below.4,3
marshall27 [118]

Answer:

5

Step-by-step explanation:

a^2 + b^2 = c^2

4^2 + 3^2 = c^2

16 + 9 = c^2

25 = c^2

c = 5

4 0
3 years ago
Read 2 more answers
Tina says that 3.4 x 105 is greater than 8.25 x 104. Is she correct? Justify your answer.
Anna71 [15]

Answer:

No, Tina is not correct since 3.4 × 105 = 357 and 8.25 × 104 = 858

6 0
3 years ago
Read 2 more answers
What is the square root of 25
anastassius [24]

Answer:

5

Step-by-step explanation:

5 square, which means 5 multiplied by 5 gives you 25

4 0
3 years ago
Read 2 more answers
Other questions:
  • 17.2=h+4 what does h equal
    10·2 answers
  • Brainielst!! Last 3 questions please!
    13·1 answer
  • 50 POINTS &amp; BRAINLIEST PLEASE HELP
    6·2 answers
  • How to write 7/14 - 2/7 in simplest form
    12·2 answers
  • Calling all mathemeticians
    12·2 answers
  • A line that includes the points (k,7) and (0,8) has a slope of 1 7 . What is the value of k?
    8·1 answer
  • 6 (2+g) =24 help me please
    6·2 answers
  • 2|2x-6|=20<br><br> How the hell do you do this guys :(
    15·2 answers
  • PLEASE HELPP!!! BRAINLIEST AND THANKS AND 5 STARS!!
    10·2 answers
  • if there are 20 questions on a test and I get 45% on the test how much is each question worth percent wise?? using numbers and t
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!