a. X= -2 , x=3
(X + 2) = 0, (x -3) =0
(x + 2)(x – 3) = 0
X^2 – x -6 = 0
b. X = -7, x = 11
(x + 7) = 0, (x – 11) = 0
(x + 7) (x -11) = 0
X^2 -4x – 77 = 0
joseph rimiru answered the question on November 16, 2017 at 19:17
- The initial cost of a ranch is 50 000 000. At the end of each year, the land increase by 2%. What will...(Solved)
The initial cost of a ranch is 50 000 000. At the end of each year, the land increase by 2%. What will be the value of ranch at the end of 3 years?
Date posted: November 16, 2017. Answers (1)
- A minibus cost sh 4000000. Due to wear and tear, it depreciated in value by 2% every month. Find its value after one year.(Solved)
A minibus cost sh 4000000. Due to wear and tear, it depreciated in value by 2% every month. Find its value after one year.
Date posted: November 16, 2017. Answers (1)
- An iron box costs sh. 5000. Every years it depreciated by 10% of its value at the beginning of that year. What will its...(Solved)
An iron box costs sh. 5000. Every years it depreciated by 10% of its value at the beginning of that year. What will its value be after 4 years?
Date posted: November 16, 2017. Answers (1)
- Find the rate per annum at which a certain amount of money triples after being invested for a period of 5 years compounded annually.(Solved)
Find the rate per annum at which a certain amount of money triples after being invested for a period of 5 years compounded annually.
Date posted: November 16, 2017. Answers (1)
- A businessman wants to have sh. 40000 in 8 years. How much money must he invest now if the rate of interest is 7.5% p.a....(Solved)
A businessman wants to have sh. 40000 in 8 years. How much money must he invest now if the rate of interest is 7.5% p.a. compound interest?
Date posted: November 16, 2017. Answers (1)
- Find the accumulated amount if sh. 40000 is deposited for 4 ½ years at 10% p.a. compound interest.(Solved)
Find the accumulated amount if sh. 40000 is deposited for 4 ½ years at 10% p.a. compound interest.
Date posted: November 16, 2017. Answers (1)
- What would sh. 30000 amount to after three years at 16% p.a. compounded quarterly?(Solved)
What would sh. 30000 amount to after three years at 16% p.a. compounded quarterly?
Date posted: November 16, 2017. Answers (1)
- The equation of a straight line L1 is given by 2y + 8x - 10 = 0. Another line L2 cuts L1 at right angles...(Solved)
The equation of a straight line L1 is given by 2y + 8x - 10 = 0. Another line L2 cuts L1 at right angles such that the point of intersection of the two lines has coordinates (-3,k).
(a) Find the value of k
(b) Hence find the equation of L2
Date posted: November 16, 2017. Answers (1)
- Find the amount at the end of the fourth year if sh. 60000 is deposited at 15% p.a. compound interest.(Solved)
Find the amount at the end of the fourth year if sh. 60000 is deposited at 15% p.a. compound interest.
Date posted: November 16, 2017. Answers (1)
- Find the amount after 2 years if sh. 10000 is invested at 20% p.a. compound interest.(Solved)
Find the amount after 2 years if sh. 10000 is invested at 20% p.a. compound interest.
Date posted: November 16, 2017. Answers (1)
- John invested a certain amount of cash in a bank which paid 12% p.a. simple interest. After 10 years, his total saving were sh. 10000....(Solved)
John invested a certain amount of cash in a bank which paid 12% p.a. simple interest. After 10 years, his total saving were sh. 10000. Determine the amount of money he invested initially.
Date posted: November 16, 2017. Answers (1)
- Calculate the rate of interest if sh. 9000 earns sh. 1000 after sh. 9000 earns sh. 1000 after 1 ½ years.(Solved)
Calculate the rate of interest if sh. 9000 earns sh. 1000 after sh. 9000 earns sh. 1000 after 1 ½ years.
Date posted: November 16, 2017. Answers (1)
- Calculate the simple interest and the amount on sh. 8000 for 1 ½ years at 14% per annum.(Solved)
Calculate the simple interest and the amount on sh. 8000 for 1 ½ years at 14% per annum.
Date posted: November 16, 2017. Answers (1)
- Find the simple interest earned on sh. 1000 at 12% per annum for
a. 1 year
b. 2 years
c. 3 years
(Solved)
Find the simple interest earned on sh. 1000 at 12% per annum for
a. 1 year
b. 2 years
c. 3 years
Date posted: November 16, 2017. Answers (1)
- Solve for a in log (3a + 4) – log (3-a) =1(Solved)
Solve for a in log (3a + 4) – log (3-a) =1
Date posted: November 16, 2017. Answers (1)
- Solve the following Log x = 3 log 2(Solved)
Solve the following
Log x = 3 log 2
Date posted: November 16, 2017. Answers (1)
- Find without using tables if 2 + log 3 +log y = log 5 +1(Solved)
Find without using tables if 2 + log 3 +log y = log 5 +1
Date posted: November 16, 2017. Answers (1)
- Solve for x in log x + log 6 = log 36 (Solved)
Solve for x in log x + log 6 = log 36
Date posted: November 16, 2017. Answers (1)
- Simplify (a) Log (a + 1) – log (a^2 -1) (b) Log x^4 +log x (c) Log 15 + log 3 – log...(Solved)
Simplify
a. Log (a + 1) – log (a^2 -1)
b. Log x^4 +log x
c. Log 15 + log 3 – log 9
Date posted: November 15, 2017. Answers (1)
- Simplify (a) ½ log 9 –log 3 (b) 3 – 2 log 5 (c) Log 16 –log 8(Solved)
Simplify
a. ½ log 9 –log 3
b. 3 – 2 log 5
c. Log 16 –log 8
Date posted: November 15, 2017. Answers (1)