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
algol [13]
2 years ago
6

Use the quadratic formula s to solve 2y^2-6y-8=0

Mathematics
1 answer:
Korvikt [17]2 years ago
6 0

Answer:

{4, - 1}

Step-by-step explanation:

Given

2y² - 6y - 8 = 0 ← in standard form

with a = 2, b = - 6, c = - 8

Using the quadratic formula to solve for y

y = ( - (- 6) ± \sqrt{(-6)^2-(4(2)(-8)} ) / (2 × 2)

  = ( 6 ± \sqrt{36+64} ) / 4

  = ( 6 ± \sqrt{100} ) / 4

  = ( 6 ± 10 ) / 4

x = \frac{6+10}{4} = \frac{16}{4} = 4

OR

x = \frac{6-10}{4} = \frac{-4}{4} = - 1

Solution is { 4, - 1 }

You might be interested in
What is one c o ck plus 2 c ock
lutik1710 [3]

Answer:

3 c ock

Step-by-step explanation:

Reason being of you add 1 c ock and 2 c ock you get 3 c ock

8 0
2 years ago
Name a pair of vertical and adjacent angles in each figure. Find m<1
Grace [21]

Answer:

80 degrees

Step-by-step explanation:

Vertical angles are congruent, meaning that if a vertical angle is 80 degrees, the other vertical angle is 80 degrees; they have the same angle measure.

m < 1 = 80 degrees

3 0
2 years ago
How many different surgery scrub outfits would you have if you have 5
mafiozo [28]

Answer:

2

Step-by-step explanation:

cuz u would have extra hats so just wear the pants again

4 0
3 years ago
What is the value of X?
zhenek [66]
Tough sorry wish I could help u can’t too hard but I think it is equivalent to the other triangle so I think it’s 31? I THINK
7 0
3 years ago
Read 2 more answers
Write out the equation that would go with a graph
KIM [24]

Answer:

y = (1/2)x + 0

Step-by-step explanation:

The equation would be y = mx + b

m is the slope and b is the y-intercept

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 7.05 as a mixed number
    14·1 answer
  • Solve For x.<br> 5/6 = 15/x
    13·2 answers
  • Solve the equation.Find the product of each sum and difference. (2c + 8)(2c – 8)
    7·2 answers
  • Can u simplify 52/77
    9·2 answers
  • Which of the following interpretations for the given expression is correct?
    12·2 answers
  • PLEASE HELP WITH THIS I DONT UNDERSTAND THIS ONE
    6·1 answer
  • Shoemakers of America forecasts the following demand for the next six months: 5000 pairs in month 1; 6000 pairs in month 2; 7000
    8·1 answer
  • How do i know if a system of equation has infinite number of solutions
    12·1 answer
  • N-7=14<br> please solve for N
    9·2 answers
  • In this unit, you worked with geometric proofs. A proof is a logical sequence of justified conclusions that lead from a hypothes
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!