Question

WEEKLY REVISION TEST
Mascimum Marles:
Time Allowed: 1 hour and 30 minutes
[1]
어고
2
[1]
[1]
3
[1]
50 Section A
14588
Write the denominator of the rational number
625
in the form 2m x 5n, where m, n are
non-negative integers. Hence, write its decimal expansion, without actual division.
What is a composite number?
Two positive integers a and b are written as a = x3y2 and b = xy3: x,y are prime numbers. Find
LCM (a, b).
If the mean of the first n natural number is 15, then find n.
OR
Find the prime factors of 15 by applying the prime factorization method.
Sum and product of zeroes of quadratic polynomial are 5 and 17 respectively. Find the
polynomial.
Write the polynomial, the product and sum of whose zeroes are
9
3
and respectively.
2.
2
If x= 1 is a zero of the polynomial f(x) = x3 - 2x2 + 4x + k, find the value of k.
OR
115
.
[1]
[1]
7.
[1]
.
Find the value of 'k' such that the quadratic polynomial x 2.(k+6)x+ 2 (2k +1) has sum of the
zeros is half of their product.​

Answer 1

Answer:

ifgdggggjffgjs shall ghggvvddjsgstnudvj

Answer 2

Answer:

Step-by-step explanation:

WEEKLY REVISION TEST

Mascimum Marles:

Time Allowed: 1 hour and 30 minutes

[1]

어고

2

[1]

[1]

3

[1]

50 Section A

14588

Write the denominator of the rational number

625

in the form 2m x 5n, where m, n are

non-negative integers. Hence, write its decimal expansion, without actual division.

What is a composite number?

Two positive integers a and b are written as a = x3y2 and b = xy3: x,y are prime numbers. Find

LCM (a, b).

If the mean of the first n natural number is 15, then find n.

OR

Find the prime factors of 15 by applying the prime factorization method.

Sum and product of zeroes of quadratic polynomial are 5 and 17 respectively. Find the

polynomial.

Write the polynomial, the product and sum of whose zeroes are

9

3

and respectively.

2.

2

If x= 1 is a zero of the polynomial f(x) = x3 - 2x2 + 4x + k, find the value of k.

OR

115

.

[1]

[1]

7.