Solve for x in the equation 125^-x × 5^2(x-2) = 25^(x+2)

      

Solve for x in the equation 125^-x × 5^2(x-2) = 25^(x+2)

  

Answers

---

---

Kavungya answered the question on November 8, 2019 at 10:02

Next: The diagram below is an illustration of a composite pit. Study the illustration and answer the questions that follow.
Previous: A cylindrical tank of diameter 1.4 m and height 1.2 m is two – thirds full of water. The tank if filled using a cylindrical...

View More Mathematics Questions and Answers | Return to Questions Index

Learn High School English on YouTube

Related Questions

---

• a) Complete the table given below by filling the blank spaces. b) On the grid provided draw on the same axes, the graph of y=4 cos²x...(Solved)
  

  a) Complete the table given below by filling the blank spaces.
  
  b) On the grid provided draw on the same axes, the graph of y=4 cos²x and y=2 sin (2x +30^o ) for O^O ≤ X ≤180^O . Take the scale 1cm for 15^o on the x –axis and 1cm for 1 unit on the y-axis.
  c) From your graph
  i) State the amplitude of y= 4cos 2x.
  ii) Find the period of y=2sin(2x +30^o )
  d) Use your graph to solve 4cos 2x – 2sin (2x + 30^o ) = 0

  Date posted: November 8, 2019.  Answers (1)

• a) The first term of a geometric progression is 36. The sum of the first three terms is 27. Calculate the common ratio and the value...(Solved)
  

  a) The first term of a geometric progression is 36. The sum of the first three terms is 27.
  Calculate the common ratio and the value of the second term.
  b) The first term of an AP is 2. The first term of a geometric sequence is also 2 and its common ratio
  equals the common difference of the arithmetic sequence. The square of the fifth term of arithmetic
  sequence exceeds the third term of the geometric sequence by 2. Find the common difference and the
  sum of the first 50 terms of AP.

  Date posted: November 8, 2019.  Answers (1)

• The table below shows the income tax brackets for a certain year. Mr.Bundi earns a monthly salary of ksh.45, 000. He gets a house allowance of...(Solved)
  

  The table below shows the income tax brackets for a certain year.
  
  Mr.Bundi earns a monthly salary of ksh.45, 000. He gets a house allowance of ksh.13, 000 and a
  commuter allowance of ksh.6, 000. He is entitled to a family relief of ksh.1, 166 per month. Find
  a) Mr.Bundi’s taxable income in ksh per month.
  b) Total tax payable per month in ksh. by Mr.Bundi.
  c) Mr.Bundi’s net salary per month if the following deductions are also made monthly.
  NHIF –ksh. 1500
  Wcps 2% of basic salary.

  Date posted: November 8, 2019.  Answers (1)

• Two towns on latitude 30^oS are 3000km apart. Find the longitude different of the two towns(Solved)
  

  (a) Two towns on latitude 30^oS are 3000km apart. Find the longitude different of the two towns
  (Take and the radius of the earth to be 6370km)
  
  (b) The positions of airport P and Q are (60^oN,45^oN) and Q(60^oN,K^oE). It takes a plane 5 hrs to travel due east from P to Q at an average speed of 600 knots
  
  (i) Calculate the value of K
  (ii) The local time at P is 10.45am, what is the local time at Q when the plane reaches where?
  
  (c) Calculate the shortest distance between (30^oS,36^oE) and (30^oS,144^oW) in nautical miles

  Date posted: November 8, 2019.  Answers (1)

• The cash price of a camera is Sh.42,200. Joseph bought the camera on hire purchase (H.P) term by paying a deposit of Sh.7,200 and cleared...(Solved)
  

  The cash price of a camera is Sh.42,200. Joseph bought the camera on hire purchase (H.P) term by paying a deposit of Sh.7,200 and cleared the balance in 24 equal monthly installments each of Sh.2,250
  (a) Find the amount of interest paid under hire purchase plan
  
  (b) Ken took a loan from a financial institution and bought the camera with cash. He repaid the loan in two years at 18% interest compound semi-annualy. Find the total interest paid by Ken
  
  (c) The cash price is taken as the value of the Camera. If the camera depreciated at a rate of 15% in the first year after buying and at P% p.a for rest of the time, calculate the value of p if the value of the camera after 5 years was Sh.23,534

  Date posted: November 8, 2019.  Answers (1)

• (a) A sequence is formed by adding corresponding terms of an A.P and a G.P. The first, second and third terms of the sequence formed...(Solved)
  

  (a) A sequence is formed by adding corresponding terms of an A.P and a G.P. The first, second and third terms of the sequence formed after adding the first three terms of the sequences are 14,34 and 78 respectively. Given that the first term of the A.P is a and the first term of the G.P is b, and that the common ratio of the G.P is 3; Find the first term of the AP and G.P and the common difference of the A.P
  
  (b)The second and third terms of a geometric progression are 24 and 12(x+1) respectively. Given that the sum of the first three terms of the progression is 76, find the whole number value of x and hence the first term

  Date posted: November 8, 2019.  Answers (1)

• The points A¹B¹ and C¹ are the images of A(4,1), B(0,-2) and C(-2,4)(Solved)
  

  (a) The points A¹B¹ and C¹ are the images of A(4,1), B(0,-2) and C(-2,4) respectively under transformation represented by the matrix M= write down the coordinates of A¹B¹C¹
  
  (b) A¹¹B¹¹C¹¹ are the images of A¹B¹C¹ under another transformation whose matrix is write down the coordinates of A¹¹B¹¹C¹¹
  
  (c) Transformation m followed by N can be represented by a single transformation P. Determine the
  matrix for P
  
  (d) Another transformation has the matrix T =
  Determine the matrix for transformation m followed by N and T in that order

  Date posted: November 8, 2019.  Answers (1)

• The diagram below shows a square based pyramid V vertices above the middle of the base. PQ=10cm and VR=13cm M is the midpoint of VR(Solved)
  

  The diagram below shows a square based pyramid V vertices above the middle of the base. PQ=10cm and VR=13cm M is the midpoint of VR
  
  Find
  (a)(i) the length PR
  (ii) the height of the pyramid
  
  (b)(i) the angle between VR and the base PQRS
  (ii) the angle between PM and the base PQRS
  (iii) the angle between the planes QVR and PQRS

  Date posted: November 8, 2019.  Answers (1)

• Given that OA= -i +j, OB=3i+5j and OC= 11i+13j. Show that A, B and C are collinear.(Solved)
  

  Given that OA= -i +j, OB=3i+5j and OC= 11i+13j. Show that A, B and C are collinear.

  Date posted: November 8, 2019.  Answers (1)

• Three towns X,Y and Z are such that Y is 50km South of X and Z is on a bearing of 300^o from Y. Calculate...(Solved)
  

  Three towns X,Y and Z are such that Y is 50km South of X and Z is on a bearing of 300^o from Y. Calculate the angle XZY given that XZ is 70km.

  Date posted: November 8, 2019.  Answers (1)

• A transformation matrix maps an object of area 21cm² to an image of area 42cm². Determine the value of p.(Solved)
  

  A transformation matrix maps an object of area 21cm² to an image of area 42cm². Determine the value of p.

  Date posted: November 8, 2019.  Answers (1)

• The points P and Q are 7.4cm apart. By construction locate the locus R such that PR=2.5cm and angle PRQ=90^o.(Solved)
  

  The points P and Q are 7.4cm apart. By construction locate the locus R such that PR=2.5cm and angle PRQ=90^o.

  Date posted: November 8, 2019.  Answers (1)

• Find the radius and the coordinates of the centre of the circle whose equation is 2x² + 2y² – 3x +2y + 1/2 = 0(Solved)
  

  Find the radius and the coordinates of the centre of the circle whose equation is
  2x² + 2y² – 3x +2y + 1/2 = 0

  Date posted: November 8, 2019.  Answers (1)

• A bag contains 2 white balls and 3 black balls. A second bag contained 3 white balls and 2 black balls. The balls are identical...(Solved)
  

  A bag contains 2 white balls and 3 black balls. A second bag contained 3 white balls and 2 black balls. The balls are identical except for the colours. Two balls are drawn at random, one after the other from the first bag and placed in the second bag. Calculate the probability that the two balls are both white.

  Date posted: November 8, 2019.  Answers (1)

• A circle whose equation is x²+y²+4x-10y+4=0 touches a straight line (-7,3). Find the equation of the line(Solved)
  

  A circle whose equation is x²+y²+4x-10y+4=0 touches a straight line (-7,3). Find the equation of the line

  Date posted: November 8, 2019.  Answers (1)

• Find the value of x given that the matrix is a singular matrix.(Solved)
  

  Find the value of x given that the matrix is a singular matrix.
  

  Date posted: November 8, 2019.  Answers (1)

• Solve for x in the equation. 2sin²x-1 = cos² x + sin x, where O^O = x = 360^o.(Solved)
  

  Solve for x in the equation.
  2sin²x-1 = cos² x + sin x, where O^O ≤ x ≤ 360^o.

  Date posted: November 8, 2019.  Answers (1)

• Find the values of a and b where a and b are irrational numbers(Solved)
  

  If, ,find the values of a and b where a and b are irrational numbers

  Date posted: November 8, 2019.  Answers (1)

• The dimensions of a rectangle are 40cm and 45cm. If there is an error of 5% in the length and 8% in the width. Find...(Solved)
  

  The dimensions of a rectangle are 40cm and 45cm. If there is an error of 5% in the length and 8% in the width. Find the percentage error I calculating the area of the rectangle.

  Date posted: November 8, 2019.  Answers (1)

• Use logarithms correct to 4 decimal places to evaluate.(Solved)
  

  Use logarithms correct to 4 decimal places to evaluate.
  

  Date posted: November 8, 2019.  Answers (1)