mathematics

SS 1 Mathematics

16/09/2020

09/09/2020

Lesson 2

08/09/2020

Lesson 1

02/09/2020

01/09/2020

26/08/2020

Lesson2

25/08/2020

Lesson 1

18/08/2020

Lesson 1

Indices & Logarithms

Exercise

19/08/2020

Lesson 2

Geometry

Exercise

11/08/2020

Lesson 1

Conversion

12/08/2020

Lesson 2

Sets

Exercise

05/08/2020

Lesson 2

Exercise

04/08/2020

Lesson 1

Exercise

29/07/2020

Lesson 2

SET THEORY

28/07/2020

ALGEBRAIC SIMPLIFICATION

Exercise

21/07/2020

LESSON 1

RATIO AND RATE

22/07/2020

LESSON 2

QUADRATIC EQUATIONS

30/06/2020

LESSON 1

Subject of formula

01/07/2020

LESSON 2

NUMBER BASES

23/06/2020

LESSON 1

Trigonometry

24/06/2020

LESSON 2

Change of Subject of formula

Kindly copy the solutions to your note after entry online.

16/06/2020

LESSON 1

EQUATIONS

Solve the following equations

17/06/2020

LESSON 2

WORD PROBLEMS ON EQUATIONS

Kindly transfer the solutions to your notes after uploading online.

09/06/2020

GEOMETRY

10/06/2020

LESSON 2

ALGEBRAIC PROCESSES

Exercise

Kindly copy the solutions in your note after solving online.

03/06/2020

02-06-2020

LESSON 1

  1. Given that x=1/2 and y=4,evaluate 3x2 + xy2
  2. The arc of a circle 50cm long,subtends an angle of 75o at the centre of the circle.Find,correct to 3s.f, the radius of the circle.
  3. The length of the parallel sides of a trapezium are 5cm and 7cm.If its area is 120cm2 ,find the perpendicular distance between the parallel sides.
  4. A regular polygon has 9 sides.What is the size of one of its exterior angles.
  5. A rectangular carpet 2.5m long and 2.4m wide covers 5% of a rectangular floor.Calculate the area of the floor.
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28-05-2020

REVISION ON SETS,NUMERICAL PROCESSES AND TRIGONOMETRY

To solve a quadratic equation, first multiply the 1st and last terms.Next, we find two factors of the product that when added gives the middle term.

E.g. To solve 6x2 +7x-20,factorise as follows:

6x2 x (-20)=-120x2 ;factors of -120x2 are 15x and -8x

These gives 6x2 +15x-8x-20=3x(2x+5)-4(2x+5)=0

Thus,(2x+5)(3x-4)=0 and this gives x=-5/2 or x=4/3

QUESTIONS

  1. In a class of 80 students, every student studies Economics or Geography or both. If 65 students study Economics and 50 study Geography,how many students study both subjects.
  2. If 2x2 +kx-14=(x+2)(2x-7),find the value of k.
  3. Given that sin(5x-28)=cos(3x-50),find the value of x.
  4. A Chord of length 30cm is 8cm away from the centre of the circle.What is the radius of the circle?
  5. Mr Felix travelled from Warri to Ibadan a distance of 720km in 8hrs.What will be his speed in m/s.
  6. If #2500.00 amounted to #3500.oo in 4 years at simple interest,find the rate at which interest was charged?
  7. Alfred spent 1/4 of his money on food,1/3 on clothing and saved the rest.If he saved #72000.00,how much did he spend on food?
  8. The sum of the interior angles of a regular polygon is 1800o.How many sides has the polygon.
  9. If Sin x=5/13 and x is acute,find the value of cos x-tan x.
  10. An object is 6m away from the base of a mast. The angle of depression of the object from the top of the mast is 500 .Find,correct to 2dp,the height of the mast.
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Good day students! Hope you’re staying safe! Here are some questions on SETS for you to solve:

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Ok, lets start with algebraic expressions. What is Algebraic expression?

At the end of this lesson, you are expected to be a ble to solve problems in Algebraic Expression.

Teacher: Mr MAJASAN E.F_____

First of all, lets see the video below, after which we need to put pen to paper.

Good to meet you all on this platform,below are the questions for this week.

1.The ratio of the interior angle to the exterior angle of a regular polygon is 5:2.Find the number of sides of the polygon.

2. The sum of the ages of a woman and her daughter is 46years.In 4years time,the ratio of their ages will be 7:2.Find their present ages.

3. Given that sinx=2/3,evaluate,leaving your answer in surd form and without using tables or calculator,tanx-cos x.

4. A point on the ground is 5m away from the foot of a vertical wall 7m high.Calculate correct to the nearest degree,the angle of depression of the point from the top of the wall.

5. A dealer sold a car to a man and made a profit of 15%. The man then sold it to a woman for #120,175.00 at a loss of 5%.How much did the dealer buy the car.

Note:You can solve in a booklet,snap it and upload on this site or type your solutions in the space provided below.

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