Question

If x and y are in direct proportion then which of the following is correct? *
1 point
A) x-y=constant
B) x+y=constant
C) xy=constant
D) x/y=constant
13) Simplify: { (-4/5)⁻²}² *
1 point
A) 16/25
B) 25/16
C) 256/625
D) 625/256
14) Which is the reciprocal of ( 3/5)⁰ *
1 point
A) 5/3
B) -5/3
C) 0
D) 1
15) The multiplicative inverse of 2⁻⁷ is *
1 point
A) 2⁻⁷
B) 2/7
C)2⁷
D) None of these
16) Which is the common factor of 21x²y and 35xy² *
1 point
A) 7
B) xy
C) 7xy
D) none of these
17) Factorise: p²-10p+25 *
1 point
A) (p-5)²
B) (p+5)
C) (p+5)²
D) (p-5)
18)Divide (10x-25) by 5 *
1 point
A) 10x-5
B) 10x
C) 2x-5
D) 2x+5
19) Number of factors of (a+b)² is *
1 point
A) 2
B) 1
C) 3
D) 4
20) Find the value of A and B : 3 A + 25 = B 2 *
1 point
A) 6 and 7
B) 7 and 6
C) 5 and 6
D) 6 and 5
21) Generalised form of the three digit number" pqr" is *
1 point
A) p+q+r
B) 100p+10q+r
C) 100r+10q+p
D) 100q+10r+p
22) The point (0,4) lies on *
1 point
A) x-axis
B) y-axis
C) origin
D) none of these
23) By joining (-1,-1); (0,0) and (3,3) which of the following is obtained? *
1 point
A) a triangle
B) a curved line
C) a straight line passing through the origin
D) none of these
24) Which of these would be equal to the number itself? *
1 point
A) 50% of 50% of a number
B) 100% of 200% of a number
C)75% of 25% of a number
D) 200% of 50% of a number
25) The angles of a triangle are in the ratio 2 : 5 : 2. What kind of triangle will it be? *
1 point
A) Right angled, Isosceles
B) Obtuse angled, Isosceles
C)Acute angled, may be isosceles or scalene
D) Obtuse angled, Scalene
26) What is the number midway between 12345 and 54321? *
1 point
A) 20988
B) 32423
C) 33333
D) 41976​

Answer 1

Answer:

Step-by-step explanation:

i dont know this question's answer

Answer 2

Step-by-step explanation:

Option (d)

Option (d)

Option (d)

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