please solve all questions in copy please urgent
Answers
Answer:
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Step-by-step explanation:
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Step-by-step explanation:
1.Area of rhombus = 1212 x d1d1 x d2d2
= 1212 x 1010 x 8.28.2
= 41 sq.cm
2. area of cube = side^2
side =√ area of cube
side = √600
= 24.49cm
3.Volume of a cuboid = Base area × Height
Hence height of the cuboid = Base area
volume of cuboid
= 275/25. = 11 cm
4
Let the initial edge of the cube be 'l' cm.
If each edge of the cube is doubled, then it becomes '2l' cm.
(i) Initial surface area = 6 l²
New surface area = 6(2l)² = 6 × 4 l² = 24 l²
Ratio = 6 l² : 24 l² = 1:4
Thus, the surface are increases by 4 times
5
If the height of the cylinder = h
Radius of the base (r) = 140 / 2 cm = 70 cm = 0.7 m
Given that the volume of the cylinder is 1.54 m³
Volume of the cylinder = πr²h
1.54 = (22/7) × 0.7 × 0.7 × h
h = (1.54 × 7) / (0.7 × 0.7 × 22)
h = 1 m
Thus the height of the cylinder is 1 m.
6.
multiplicative inverse of 5^-3 = 5^3
multiplicative inverse of 10^-5= 10^5
7.
= (3^0+4^-1)x2^2
= (1+ 4^-1 )x 4
=. 5/4 x 4
= 5
8
question is not clear
9.
3 x 10 ^ -5 = 0.00003
= 3.52 x 10^5 = 352000
10
i. a(m+n)
ii. a(m x n)
I hope this will help you