ECO153
If A = {1, 3, 5, 6, 7, 9, 10} and B = {2, 4, 5, 7, 10} Then, what is AuB?
Answer: {1,2, 3, 4, 5, 6, 7, 9, 10}
The set of real numbers is denoted by symbol R. When the set of R is displaced on a straight line (an extended ruler), we refer to the line as the real
Answer: line
Grace sold his used car for N3,520. If he received 7 times as much money for the car as he did for the accessories, find how much money he received for the car.
Answer: n3080
The objects which belong to a set are called its or members of the set.
Answer: elements
Factorisation is the opposite process of brackets
Answer: expanding
Express 3/5 as a percentage
Answer: 0.6
Expand aA2 + bÄ2
Answer: (a + 1b) (a-1b)
Equation, C = 40 + 0.6Yd is the relationship between and disposable income
Answer: buyer
A sequence is formed when a set of number is increasing or decreasing by a value as the term of the sequences are being formed.
Answer: constant
If S = {1, 2, 4, 6, 10} and Z = {4, 6}, then Z is a of S, because every element of Z is also known as element of S.
Answer: subset
A survey in a class shows that 150 of the students play football, 110 play tennis and 60 play both football and tennis. How many students are there in the class, if everyone play at least one of these games?
Answer: 200
Which of the following is the solution for x in the simultaneous equations?
Answer: x= -2
Which of the following shows the prime factorization of 27?
Answer: 3 ä— 3 a— 3
If A = {1. 3, 5, 6, 7, 9, 10} and B = {2, 4, 5, 7, 10} Then, what is AnB?
Answer: {5, 7, 10}
Factorize,Ä 2xâ“’6×2
Answer: 2x(1â“’3x)
Which of the following shows the prime factorization of 24?
Answer: 2 a— 2 a— 2 a— 3 ä— 3
Find the LCMof3,5and6
Answer: 24
A set is when it has a definite number of elements
Answer: finite
Equation, Qd = 25 â€u 2p is the relationship between quantity and price
Answer: demanded
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