Damari inflates a spherical balloon to twice its original radius. Explain to Damari why the surface area is 4 Tims as big when the radius is doubled.

Answers

Answer 1

Answer: The easiest way is to show him the formula for the area of a sphere:

Area = 4 π (radius)²

That's a good thing to discuss, because it's a good thing to remember,
and discussing it will help him remember it.

The important part to look at is the part where it says " (radius)² " .
That tells you that if you multiply the radius by (Anything), then
the area is multiplied by (Anything)² .

Since he multiplied the radius by 2, the area was multiplied by (2)² = 4 .

Answer 2

Answer: Surface area is directly proportional to the square of radius.

Thus, when radius is doubled, Surface area becomes 2² = 4 times.

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Answers

Hope this helps! If there's any question then leave a comment.

24+ =120÷3
what's supposed to be in the space?

Answers

so first you simplify
24+x=120/3
120/3=40
24+x=40
subtract 24 from both sides
x=16

120/3= 40
40-24=16

16 is in the blank space

Identify a factor of the trinomial x2 + 6x + 8

Answers

(x+4) and (x+2) are factors.

(x+2) and (x+4) are your main factors

Suppose a triangle has sides 3 4 and 5, which of the following must be true

Answers

You haven't given any options to select.
However, if this is the way of values we can check pythagoras theorem .

5^2 = 25

3^2 + 4^2
9 + 16
25

25 = 25

therefore we can say it is the right angle triangle

Derive the equation, in the
form y = mx + b, for the line. (Look at the photo.)