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
denpristay [2]
4 years ago
7

Solve 3x²-x-2=0. Please show all work.​

Mathematics
1 answer:
lorasvet [3.4K]4 years ago
3 0

3x²-x-2=0

Δ=1+24=25 (Δ=b²-4ac)

x₁,₂=\frac{1(+/-)\sqrt{25} }{6}

x₁,₂=\frac{1(+/-)5}{6}

x1=\frac{1+5}{6}=6/6=1

x2=\frac{1-5}{6}=\frac{-2}{3}

so

x1=1

x2=\frac{-2}{3}

You might be interested in
Number 20 pls I need help with this one
Norma-Jean [14]
He uses 5/8 tanks of gas in one week.

In 5 he will use, 5/8 *5 = 25/8 in 5 weeks 
This can be simplified too:
3.125 tanks of gas

The answer is, 25/8 tanks of gas or 3.125 tanks of gas

3 0
3 years ago
Nevaeh went shopping for a new phone because of a discount sale. She multiplied the price of the phone by 0.95 to find the price
ella [17]

Answer:

95% off

Step-by-step explanation:

because the percent u times by the actual price is the percent u have off

3 0
3 years ago
What is 1/10 of 1000
Marianna [84]
It is 100. There is many ways to find this answer. One way would be to divide 1000 by 10 to get a 100. Another way is to take the decimal form of 1/10 which is .10 and times it by 1000 to get 100.
4 0
3 years ago
Read 2 more answers
Please help with this look below! : )
kykrilka [37]

Answer:

$0.40

Step-by-step explanation:

5.60/14 = .40

5 0
3 years ago
The ticket price for an ice hockey match used to cost £19.60. The price has now increased by 12.5%. How much will 2 tickets cost
Amanda [17]

Answer:

The 2 tickets will cost £44.10 after the increase.

Step-by-step explanation:

First, you have to multiply £19.60 by 12.5% to find the increase in the cost of tickets.

19.60(0.125)=2.45

Add the price increase to the original cost to find the new cost of each ticket.

19.60+2.45=22.05

Multiply the result by 2 since you have to look for the cost of the 2 tickets.

22.05(2)=44.10

8 0
3 years ago
Other questions:
  • Hannah is making bags of. trail mix for hiking club she will use 21 ounces of walnuts 11.1 ounces of almonds and 13.4 ounces of
    10·1 answer
  • ILL GIVE BRAINLIEST... HURRY PLZ
    15·1 answer
  • Pls answer it very fast
    12·2 answers
  • Please answer this question I really need it today I need to hand this in 8:00pm please answer it and please show work please
    7·1 answer
  • A/dc=b ,solve for a ---please help?!!
    15·1 answer
  • Solve for X:-1 Plz help
    10·2 answers
  • What is 56/160 in simplest form? ​
    13·2 answers
  • What 2 numbers multiply to -18 and add up to -4
    12·1 answer
  • Please someone help. Giving brainliest!!!!!! :)
    6·1 answer
  • What is the slope of the line
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!