Surface area of a cone = π{rs+r²} =πr{s+r} part 1:if π is 6 units and s is 4 units then r would be 3.14 ×6 {4+6} part 2: area of a cone = 3.14 ×6×10 =31.4×6 = 188.4 units² the surface area = 188.4 units² hope i helped

4 0

3 years ago

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What is the perimeter of a polygon with vertices at (3, 2) , (3, 9) , (7, 12) , (11, 9) , and (11, 2) ?

Furkat [3]

The perimeter of said polygon is 32.

5 0

3 years ago

S is inversely proportional to t When s = 0.5, t = 7 Work out s when t = 0.8

defon

Given:

s is inversely proportional to t.

When s = 0.5, t = 7.

To find:

The value of s when t=0.8.

Solution:

s is inversely proportional to t.

$s\propto \dfrac{1}{t}$

$s=\dfrac{k}{t}$ ...(i)

Where, k is the constant of proportionality.

Putting s=0.5 and t=7, we get

$0.5=\dfrac{k}{7}$

$0.5\times 7=k$

$3.5=k$

Putting k=3.5 in (i), we get

$s=\dfrac{3.5}{t}$

This is the equation of proportionality.

Putting t=0.8, we get

$s=\dfrac{3.5}{0.8}$

$s=4.375
$

Therefore, the value of s is 4.375 when t=0.8.

5 0

2 years ago

I found a place that will give me 20% discount if I spend over $50. My pill is $75. How much money will I save?

olasank [31]

75*.2=15
you would save $15

hope that helps

5 0

3 years ago