Question:1
a) Insert 6 rational numbers between 3/5 and 1/4.
b) By which number should (-8)-1 be multiplied so that the product is equal
to 10-1?
c) Find the smallest number by which 2925 must be divided to obtain a perfect square. Also, find the square root of the perfect square so obtained.
Question 2:
a) Write the following using scientific notation
i) 8134569 ii) 614.3215 iii) 0.000000187
b) Evaluate ∛(0.064/0.027)+∛(0.125/0.064)-3
c) In a hostel with 400 children, some opt for Football and 250 children opt for Cricket and 160 opt for both Football and Cricket.
i) How many children have opted for only Football? ii) How many children have opted for only Cricket?
Answers
Answered by
1
Step-by-step explanation:
Initial speed u=80 km/h=80×
18
5
=22.22 m/s
Final speed v=60 km/h=60×
18
5
=16.67 m/s
Using v=u+at
Or 16.67=22.22+a×5
⟹ a=−1.1 m/s
2
Answered by
0
Answer:
a)By taking LCM of 3 and 5 which is 15 and converting these rational numbers into rational numbers with common denominator we get,
3
1
=
15
5
and
5
4
=
15
12
the rational number between
3
1
and
5
4
is
15
7
The decending order is
5
4
,
15
7
,
3
1
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