guys can y'all plz solve from question number 20 till the end.
plz solve with all the steps.
plzzzz guys i really need it now.
Answers
Answer:
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Step-by-step explanation:
1.every rational number is
a) a natural number b) an integer c)a real number d) a whole number =a
2.between two rational numbers
a) there is a rational number b) there is exactly one rational number
c)there are infinitely many rational numbers d) there are only rational number and no irrational
number =d
3. decimal representation of a rational number cannot be = a
a) terminating b) non-terminating c)non terminating /repeating
d)non terminating/ non repeating
4. a rational number between √2 and √3 is
a)√2+√3
2
b) √2−√3
2
c)1.5 d)1.8=c
5.the value of 1.999…. in the form p/q where p and q are integers is
a)19/10 b)1999/1000 c)2 d)1/9=b
6.write the following in decimal form and say what kind of decimal expansion each has
a)36/100 b)1/11 c) 33/8 d)3/13 e)2/11 f)329/400=don't know
7.Is √98
√2
a rational number or not ?=yes
8. Write the simplest form of a rational number 177
413=
9.find the decimal expansion of 58
1000
.
10. calculate the p/q form of 0.777….. ,where p and q are integers and q≠ 0.
11. The product of any two irrational numbers is
a)always an irrational number b) always a rational number c) always an integer
d) sometimes rational ,sometimes irrational
12. The decimal expansion of √2 is
a) a finite decimal b)1.41421 c) non terminating recurring d) non terminating non/recurring
a.
√4
9
b)√12
√3
c)√7 c)√81
14. simplify the number(√2+√3)
2
15. Is√2
3
a rational number ,if not why ?
16.the irrational number between 1/7 and 2/7 is
a) 0.13245….. b)0.1563896…… c)0.299879…. d)0.35367.
17. 2√3+√3 is equal to
a) 2√6 b)6 c)3√3 d)4√6
18. √10 x√15 is equal to
a)6√5 b)5√6 c) √25 d)4√6
19.The number obtained by rationalising the denominator of 1
√7−2
a) √7+2
3
b) √7−2
3
c) √7+2
5
d) √7+2
45
20. 1
√9−√8
is equal to
a)1
2
(3 − 2√2) b) 1
3+2√2
c) 3 − 2√2 d) 3 + 2√2
21)after rationalising the denominator of 7
3√3−2√2
we get the denominator as
a)13 b)19 c)5 d)35
22)The value of √32+ √48
√8+√12
is equal to
a)√2 b)2 c)4 d)8
23.Simplify (5+√2)(5 − √2)
24. write the equivalent of √12 x √8
25.calculate the value of 4√28 +3√7
26.if b2=a then the value of √ is
a) b b)√ c) a2 =c
28.simplify: (4√3 + 3√2 )
4*3+3*2=6+8=3*2*2*2*2=2*2=4ans
29. √√2
4 3 2 is equal to
30.An isosceles triangle has an area 8 cm2 .the length of the hypotenuse is
a) √32 b) √16 cm c) √48 cm d) √24=b