Answer:
Curved surface area of sphere = 2πr × 2r=4πr^2;
The new diameter is 120/100 from the old diameter;
2R = (120/100)x(2r);
So, R = 1.2 x r;
Curved surface area of new sphere = 4πR^2 = 4π(1.2xr)^2= 4πr^2x1.44= curved surface of old sphere x (144%);
Finnaly, the increase is 44%.
Step-by-step explanation:
We can look at 2 similar triangles.
1st triangle has legs: a vertical pole and its shadow, and
2nd triangle has legs legs : a child and his(her) shadow.
We can write a proportion:
height of a pole/height of a child= shadow of a pole/shadow of a child
8/4 = 5/shadow of a child
shadow of a child=(5*4)/8=5/2 ft
Answer: 5/2 ft
Answer:
see explanation
Step-by-step explanation:
saying 
is the same as saying 
because the first is saying 
and the second is saying 
one is just a more drawn out version to solve
Answer:
23.6 degrees
Step-by-step explanation:
Here, sin(<XZY) = 6/15 = 2/5
So, <XZY = arcsin(2/5) = 23.6
Answer:
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Step-by-step explanation:
Whats the question?
