Answer:
<em>curved</em><em> </em><em>surface</em><em> </em><em>area</em><em> </em><em>of </em><em>half</em><em> </em><em>cylinder</em><em> </em><em>is</em>
Step-by-step explanation:
πr2h
Answer:
0.7 ml
Step-by-step explanation:
10.4
m
l
−
9.7
m
l
=
0.7
m
l
Answer:
Length = 6 cm and width = 4 cm.
Step-by-step explanation:
Let the width be x, then the length is x + 2 cm and its area = x(x + 2).
The new width and length are x + 4 and x + 6, and the new area is
(x + 4)(x + 6).
So we have the equation:-
(x + 6)(x + 4) = x(x + 2) + 56
x^2 + 10x + 24 = x^2 + 2x + 56
10x - 2x = 56 - 24
8x = 32
x = 4 cm = width
and length = 4 + 2 = 6 cm
Step-by-step explanation:
4(x – 3) = 20
1st Step: 4x – 12 = 20
Reason: Distribute
2nd Step: 4x – 12 + 12 = 20 + 12
» 4x = 32
Reason: Add 12 to both sides
3rd Step: 4x ÷ 4 = 32 ÷ 4
» x = 8
Reason: Divide both sides by 4