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
ollegr [7]
3 years ago
11

Find the exact solutions to 2x^2=5x-1 by using the quadratic formula

Mathematics
2 answers:
Luda [366]3 years ago
3 0

Solve the equation for  x  by finding  a ,  b , and  c of the quadratic then applying the quadratic formula

Exact form:

x =  5 ± √ 17

     4

Decimal:

x =  2.28077640 … , 0.21922359

sorry idk how to put a fraction in

klio [65]3 years ago
3 0

Answer:

The exact solution is (5 ± √17) / 4.

Step-by-step explanation:

2x^2 = 5x-1

2x^2 - 5x + 1 = 0

then,

a = 2, b = -5, c = 1

Now, by using quadratic formula,

(-b±√(b²-4ac)) / (2a)

(5 ± √(-5)^2 - 4(2)(1)) / 2×(2)

(5 ± √17) / 4.

You might be interested in
URGENT PLS HELP MAX POINTS
bija089 [108]

Answer:

-103

243

Step-by-step explanation:

(q•r)(5) = q(r(5))

r(5) = 2(5²) + 1 = 51

q(51) = -2(51) - 1 = -103

(r•q)(5) = r(q(5))

q(5) = -2(5) - 1 = -11

r(-11) = 2(-11)² + 1 = 243

6 0
3 years ago
{8x [1+(20-6)]}÷ 1/2=
IceJOKER [234]
You would do 20-6 which = 14. + 1 =15. times 8= 120 then divide that by 1/2 =  240 if you do 120 divided by .5 in a calculator thats what you get. i hope that helps you

7 0
3 years ago
A.) f(x)=3x^2-18x+27.
Alona [7]
A)
Vertex:(3,0)
x-intercepts: (3,0) 
y-intercepts: (0,27)

B)
Vertex:(0,-9)
x-intercepts:none 
y-<span>intercepts:</span> (0,-9)
8 0
3 years ago
Read 2 more answers
Reduce fraction 18/20
ra1l [238]

It would be 9/10 or 0.9!

6 0
3 years ago
Read 2 more answers
In ΔMNO, the measure of ∠O=90°, MO = 36, NM = 85, and ON = 77. What ratio represents the tangent of ∠M?
Genrish500 [490]

Answer:

77/36

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • On the graph of the equation X-4Y= -16 what is the value of the Y-intercept?
    6·1 answer
  • Quincy found 120 shells during four days at the beach. if quincy found the same number of shells each day, how many shells did h
    6·2 answers
  • What is (x,y) (2x,2y)
    9·1 answer
  • A solution is tested and found to have a pH of 1. The solution is A. strongly acidic. B. strongly basic. C. weakly basic. D. wea
    11·2 answers
  • the davis' backyard measures 40 ft x90 ft. find the area of their backyardand show how the area could be written using exponents
    9·1 answer
  • What are the possible degrees for the polynomial function?
    13·1 answer
  • Express the given repeating decimal as a quotient of integers. If possible, reduce to lowest terms.
    5·1 answer
  • Determine the missing side length:
    13·1 answer
  • A pair of noise-canceling headphones regularly sells for $116. They
    11·1 answer
  • Suppose that $1,000 is deposited into an account that yields 0.85% interest, compounded annually.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!