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
Blababa [14]
3 years ago
15

Select the two values of x that are roots of this equation.

Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0

Answer:

x = 1 or -5/2

Step-by-step explanation:

-2x^2 - 3x + 5 = 0

multiply all through by -1

2x^2 + 3x - 5 = 0

....... 2x^2 × 5 = 10x^2 = +5x × -2x

(2x^2 + 5x)-(2x - 5) = 0

x(2x + 5) - 1(2x + 5) = 0

x - 1 = 0 or 2x + 5 = 0

x = 1 or 2x = - 5

x = 1 or -5/2

You might be interested in
I need help with this question please?! I'm having a hard time answering it!
Darina [25.2K]

Answer:

£0.40

Step-by-step explanation:

Divide £40 by £3.30 to find the number she can buy

£40 ÷ £3.30 = 12.1212..

That is she can buy 12 light bulbs

cost = 12 × £3.30 = £39.60

change = £40 - £39.60 = £0.40

4 0
2 years ago
Mike spent $7920 on his vacation, which was 11% of his monthly salary. What was his monthly salary
leonid [27]

Answer: $72000

  1. 7290 divided by 11 = 720
  2. 720 times 100 = 72000

8 0
3 years ago
HELP ASAP IM BEGGING U
cupoosta [38]
I think you are correct
5 0
3 years ago
Write an equation to math the vertical line shown
Roman55 [17]

Answer:

x=1

Step-by-step explanation:

We know this, because the value of x is always constant, no matter the y-value. So, the equation is x=1.

Hope this helped!

3 0
3 years ago
Read 2 more answers
PLS HELP ASAP... WILL MARK BRAINLIEST!!!!
Karolina [17]

Answer:

2 angles

Step-by-step explanation:

only 2 angles are ternate exteriors

5 0
3 years ago
Read 2 more answers
Other questions:
  • 1.7 meters to millimeters_____m =
    15·2 answers
  • Hannah and Anthony are sibling who have ages that are consecutive odd integers. The sum of their ages is 92. Which equations cou
    5·2 answers
  • A group of students calculated their average score at a spelling bee. They realized that if one of them scored 9 more points, th
    13·1 answer
  • What is the answer for x. x/2=9
    8·2 answers
  • A cylindrical oil tank with a radius of 5 meters holds 1,000 cubic meters of oil. What is the approximate height of the tank? Us
    12·1 answer
  • Plz answer these questions<br> Answer should be with explanation
    5·2 answers
  • Triangle XYZ has been dilated to form triangle LMN. What is the least amount of information needed to prove the two triangles ar
    15·2 answers
  • Let’s fix some n e {1,2,3,...}. A biased coin with probability of head p is tossed n times, and the number of heads, N1, is coun
    12·1 answer
  • Please help me. use the screenshot to help
    13·2 answers
  • 1. 2/4 x 2/9<br> 2. 3/4 x 4/9<br> 3. 2/5 x 5/8
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!