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
Debora [2.8K]
2 years ago
9

Solve the equation:

Mathematics
2 answers:
goldfiish [28.3K]2 years ago
7 0
I hope that helps you welcome

PilotLPTM [1.2K]2 years ago
5 0

Answer:

Step-by-step explanation:

4\sqrt{3-\frac{1}{x} } -\sqrt{\frac{x}{3x-1} } =3\\4\sqrt{\frac{3x-1}{x} } -\sqrt{\frac{x}{3x-1} } =3\\\\put ~\sqrt{\frac{3x-1}{x}} =a\\4a-\frac{1}{a} =3\\4a^2-1-3a=0\\4a^2-4a+1a-1=0\\4a(a-1)+1(a-1)=0\\(a-1)(4a+1)=0\\a=1,-\frac{1}{4}\\

\sqrt{\frac{3x-1}{x} } =1\\3x-1=x\\3x-x=1\\2x=1\\x=\frac{1}{2}

when a=-1/4

\sqrt{\frac{3x-1}{x} } =-\frac{1}{4} \\

\frac{3x-1}{x} =\frac{1}{16} \\48x-16=x\\47x=16\\x=\frac{16}{47}

\frac{(1-2x)^2 \times (x^2-9)}{-x^2-x+6} \geq 0,\\both ~numerator ~and~denominator ~are~of~same~sign.\\\frac{(1-2x)^2(x^2-9)}{-x^2-3x+2x+6} \geq 0\\\frac{(1-2x)^2(x+3)(x-3)}{-x(x+3)+2(x+3)} \geq 0\\\frac{(1-2x)^2(x+3)(x-3)}{(x+3)(-x+2)} \geq 0\\(1-2x)^2\geq 0~(always)\\x\neq -3\\case.~1.\\both~numerator~and~denominator >0\\\frac{x-3}{-x+2} \geq 0\\x-3\geq 0\\x\geq 3\\-x+2> 0\\-x>-2\\x

case 2.

both numerator and denominator are negative.

x-3\leq 0\\x\leq 3\\-x+2\leq 0\\-x\leq -2\\x\geq 2\\solution~is~(-\infty,-3)U(-3,3]U[2,\infty)

You might be interested in
How many solutions will there be to the following equation?
Akimi4 [234]

Answer:

C. 1 solution

Step-by-step explanation:

I calculated logically

7 0
2 years ago
Simplify the expression using properties of operations. (−r−5)−(−2r−4)
Pachacha [2.7K]

Answer:r-1

Step-by-step explanation:

(-r-5)-(-2r-4) Or (-r-5)-(-2r-4)

-r+-5+2r+4. -r-5+2r+4

r-1 r-1

You bring down the first Parentheses Then have to multiply the (implied 1) -1•-2=2 and -1•-4=4 and do the math regularly

8 0
2 years ago
The median weight of 21 dogs in a pet store is 14 pounds. Which action could CHANGE the median? A) the store gets a new 14-pound
mylen [45]

Answer:

B. the store gets a new 40-pound dog

Step-by-step explanation:

5 0
3 years ago
18. In the figure, o is the center of the circle passing through P, Q, R and S. If angle SOQ = 150°, find the values of x and y.
AveGali [126]

Answer:

x = 75°

y = 105°

Step-by-step explanation:

Angle subtended on the circumference of the circle is half of the angle subtended on the center of the circle.

\therefore m\angle SRQ = \frac{1}{2} \times m\angle SOQ\\\\\therefore x = \frac{1}{2} \times 150\degree \\\\\red{\bold{\therefore x =75\degree}} \\

Quadrilateral PQRS is a cyclic quadrilateral.

\therefore m\angle R + m\angle P= 180\degree \\\\\therefore x + y = 180\degree \\\\\therefore 75\degree + y = 180\degree \\\\\therefore y = 180\degree - 75\degree \\\\\purple {\bold {\therefore y = 105\degree}} \\

3 0
3 years ago
If lines p and q are reflected across the x-axis, then which of the pairs of lines shown would coincide with this transformation
Ipatiy [6.2K]

Answer:

the answer is C. ) lines f and e

7 0
2 years ago
Other questions:
  • What is the value of y when x = 6? -3x + 9y = 18
    5·2 answers
  • If 4 croissants costs $2.60. How much would 1 croissant cost?
    8·1 answer
  • Casey wants to buy a gym membership. Gym A has a $150 joining fee and costs $35 per month. Gym B has no joining fee and costs $6
    6·1 answer
  • True or false: 16 is a perfect square because is square root is a whole number
    7·2 answers
  • Explain how to find the deviation of an entry in a data set
    6·1 answer
  • A window is being replaced with tinted glass. The plan below shows the design of the window. Each unit length represents 1 foot.
    5·2 answers
  • A two-factor study with 3 levels of factor A and 3 levels of factor B uses a separate sample of 10 participants in each treatmen
    11·1 answer
  • Write an equation of the line containing the given point and parallel to the given line (6,7);x+7y=9
    15·1 answer
  • What is the equation of the oblique asymptote?<br> h(x) = x² – 3x - 4/x + 2
    5·1 answer
  • Which of the following package deals is a better buy according to unit price?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!