Defense General Education Department First semester Mathematics assignment submission for Grade 9 (2016 E.C.) (20%) Name Command Part I: - True/False (1point each) Write "True" if the statement is correct or "False" if the statement is incorrect on the space provided. 1. Empty set is a sub set of every set. 2. A natural number that has exactly two distinct factors, namely 1 and itself is called a prim number. 3. An equation of the form ax²+bx+c = 0 where a,b,c E R and a# 0 is linear equation. Reg No 4. The open interval (a, b) with end points a and b is the set of all real numbers x such that a< x < b. 5. If a b, then a-c cose _11. If x= 1 and y = 4 is a solution of the equation 6x - ay + 3a = 4, then the value √5 2 of a is D. 18 and -36 C. 2 D. 8 D. 4Defense General Education Department
First semester Mathematics assignment submission for
Grade 9 (2016 E.C.) (20%)
Name
Command
Part I: - True/False (1point each)
Write "True" if the statement is correct or "False" if the statement is
incorrect on the space provided.
1. Empty set is a sub set of every set.
2. A natural number that has exactly two distinct factors, namely 1 and itself is called
a prim number.
3. An equation of the form ax²+bx+c = 0 where a,b,c E R and a# 0 is linear
equation.
Reg No
4. The open interval (a, b) with end points a and b is the set of all real numbers x such
that a< x < b.
5. If a b, then a-c<b-c.
Part II: - Multiple choices (1point each)
Choose the correct answer from the given alternatives and write the letter
of choice on the space provided.
Division
6. The solution set of x +91 = 27 is_
A. 27 and 46
B.-27 and 45
7. What is the value of x in 2*-* = 32.
A. 4
B. 5
C. 9
D. 15
8. If the sum of two numbers is 13 and their product is 42, then the smaller
number is
A. 6
A. 1
B. 0
1
C. 36 and 11
4x - y = 6
(6x + 3y = 18
C. 5
B. 7
9. The solution set of x and y in,
respectively is
A. x = 2 and y = 1
B. x = 2 and y = 2
D. x = -1 and y=2
C.
x = 0 and y = 1
10. If sine for an acute angle 0, then which one of the following is correct?
B. tane =
A. cose =
C. cos (90°- 8) = D. sine> cose
_11. If x= 1 and y = 4 is a solution of the equation 6x - ay + 3a = 4, then the value
√5
2
of a is
D. 18 and -36
C. 2
D. 8
D. 4​