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
german
3 years ago
12

Determine the type and number of solutions of 4x^2-5x+1=0.

Mathematics
1 answer:
Arlecino [84]3 years ago
4 0
<span>4x² - 5x + 1 = 0
a = 4; b = - 5, c = 1
</span>Δ = b² - 4.a.c
Δ = (-5)² - 4.4.1
Δ = 25 - 16
Δ = 9
<span>
x = - b </span>± √Δ / 2.a
x =  \frac{-5\± \sqrt{9} }{2*4}
x =  \frac{-5\±3}{8}
x' =  \frac{-5-3}{8} =  \frac{-8}{8} = -1
x' = \frac{-5+3}{8} = \frac{-2}{8} (\div2) = \frac{-1}{4}


A. Two real solutions (x' = -1 and x'' = -1/4)
You might be interested in
X^3-10x=100
san4es73 [151]

Answer:

Step-by-step explanation:

6 0
3 years ago
Write 1,200 in scientific notation
iVinArrow [24]

Answer: 1.2 10x ^3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Suppose y varies directly as x, and y=14 when x=4. What is the value of y when x=9
Katena32 [7]

Given :-

  • y varies directly as x, and y=14 when x=4.

To Find :-

  • the value of y when x=9 .

Solution :-

<u>A</u><u>c</u><u>c</u><u>o</u><u>r</u><u>d</u><u>i</u><u>n</u><u>g</u><u> </u><u>t</u><u>o</u><u> </u><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>,</u>

  • y = kx ( k is constant )

<u>When</u><u> </u><u>y</u><u> </u><u>=</u><u> </u><u>1</u><u>4</u><u> </u><u>a</u><u>n</u><u>d</u><u> </u><u>x</u><u> </u><u>=</u><u> </u><u>4</u><u> </u><u>,</u>

  • 14 = k(4)
  • k = 14/4
  • k = 7/2

<u>W</u><u>h</u><u>e</u><u>n</u><u> </u><u>x</u><u> </u><u>=</u><u> </u><u>9</u><u> </u><u>,</u>

  • y = 7/2*9
  • y = 63/2
  • y = 31.5
8 0
3 years ago
Two numbers have the sum of 116. The same two numbers have a difference
WARRIOR [948]

Dear user,

The question that you provided is wrong.

5 0
3 years ago
Wats the answer for this math or
allochka39001 [22]
The answer is D because the whole circle is 369 degrees the big arc is 202 so 360- 202 is 158 then you have an inscribed angle of 35 multiply it by two to find the arc of that so it would be 70 so subtract 158-70=88 and you can see that that section of 88 is part of an inscribed angle so divide by two to get the answer of 44
5 0
3 years ago
Other questions:
  • In triangle ABC, angle A is equal to angle C, BA=x+20,CA=4x-30, and BC=3x+14. What is the length of BC?​
    15·1 answer
  • What are the steps into solving this problem
    7·1 answer
  • A wholesaler requires a minimum of 4 items in each order from its retail customers. The manager of one retail store is consideri
    5·1 answer
  • Slope and the intercept
    7·1 answer
  • What is (x + 5)power of 8 (x + 5) power of -6
    10·1 answer
  • Write the​ point-slope form of the​ line's equation satisfying the given conditions. Then use the​ point-slope form of the equat
    14·2 answers
  • Help with this please will give brainliest!
    7·1 answer
  • Jen opens a bank account with a deposit of $100. Over six years, the balance in the account changes at an increasing rate until
    12·1 answer
  • The value of √42 is
    7·2 answers
  • Plssss HELP MEEEEEE<br> i shall give thanks
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!