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
Elis [28]
3 years ago
8

3x²-9x+1+0 Find the discriminant

Mathematics
1 answer:
Sindrei [870]3 years ago
3 0

Answer:

\boxed{D = 69}

Step-by-step explanation:

The given quadratic equation is:

3x^2-9x+1 = 0

Comparing it with the standard form of Quadratic Equation ax^2+bx+c = 0 , we get:

a = 3, b = -9 and c = 1

Discriminant = b² - 4ac

D = (-9)²-4(3)(1)

D = 81 - 12

D = 69

You might be interested in
Give brainly plsssss help meeee
irina1246 [14]

Answer:

the answer is 48, or the second choice B

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Answer please lot's of points.
Svetlanka [38]

Answer:

t≈8.0927

Step-by-step explanation:

h(t) = -16t^2 + 128t +12

We want to find when h(t) is zero ( or when it hits the ground)

0 =  -16t^2 + 128t +12

Completing the square

Subtract 12 from each side

-12  =  -16t^2 + 128t

Divide each side by -16

-12/-16  =  -16/-16t^2 + 128/-16t

3/4 = t^2 -8t

Take the coefficient of t and divide it by 8

-8/2 = -4

Then square it

(-4) ^2 = 16

Add 16 to each side

16+3/4 = t^2 -8t+16

64/4 + 3/4= (t-4)^2

67/4 = (t-4)^2

Take the square root of each side

±sqrt(67/4) =sqrt( (t-4)^2)

±1/2sqrt(67) = (t-4)

Add 4 to each side

4 ±1/2sqrt(67) = t

The approximate values for t are

t≈-0.092676

t≈8.0927

The first is before the rocket is launched so the only valid answer is the second one

3 0
3 years ago
Read 2 more answers
4% of _____ days is 56 days
schepotkina [342]
We have an equation: 56/? = 4/100

Cross multiply:
4*? = 56*100
⇒ ? = 56*100/4
⇒ ?= 1,400

4% of 1,400 days is 56 days~
4 0
3 years ago
Read 2 more answers
You use 4 gallons of water on 14 plants in your garden.
GrogVix [38]

Answer:

35 plants

Step-by-step explanation:

For this case we can make the following rule of three:

4 gallons --------------> 14 plants

x --------------------------> 35 plants

From here, we clear the value of x.

We have then:

therefore, 10 gallons are needed to irrigate 35 plants.

Answer:

it will take 10 gallons to water 35 plants

4 0
3 years ago
Read 2 more answers
The school is planning a school field trip to the zoo.There are 365 students and 10 adults.Each bus can hold 44 people.How many
LiRa [457]

Answer:

I believe it is 9

Step-by-step explanation:

alls I did was add the adults to the students then I divide 375 by 44 I got a weird decimal so I rounded it up to 9

5 0
3 years ago
Other questions:
  • <img src="https://tex.z-dn.net/?f=%283%20%2B%20%20%5Csqrt%5B%5D%7B2%7D%20%29%20%7B%7D%5E%7B2%7D%20" id="TexFormula1" title="(3 +
    7·1 answer
  • Billboard on the highway has a perimeter of 118 feet find the length of the billboard at the height is 19 feet
    13·1 answer
  • <img src="https://tex.z-dn.net/?f=pi%20value%20%20" id="TexFormula1" title="pi value " alt="pi value " align="absmiddle" class
    15·2 answers
  • India or hot and Kelly visit the same number of museums ha visits to museum doing each of the her 3 days there if Kelly visits 3
    5·1 answer
  • Working at home: According to the U.S Census Bureau, 34% of men who worked at home were college graduates. In a sample of 500 wo
    10·1 answer
  • ?<br> Find the measure of the missing angles.<br> 146<br> ba<br> Submit Answer<br> attempts out of 2
    11·1 answer
  • Help so i can go please if you answer i dont know or stuff like that
    12·1 answer
  • PLZ HELP NOW!! In a group of 75 fourth graders, 21% do not like Skittles. How many students like Skittles? AND PLEASE SHOW WORK
    14·1 answer
  • Please answer with clear instructions so that i can apply this to other questions
    8·1 answer
  • Help me please<br><br> Solve the inequality s:<br><br> 5s+2&gt;7
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!