Answer:
x = 2.857 [rounded]
Step-by-step explanation:
17 x 2 = 34.
Next, we combine.
34 - 14 = 20.
Lastly, we divide 20 by 7.
20 / 7 = 2.857
<em>[The answer </em><em>is</em><em> </em><em>a</em><em> </em><em>decimal</em><em> </em><em>that</em><em> </em><em>doesn't</em><em> </em><em>end</em><em>,</em><em> </em><em>but</em><em> </em><em>I</em><em> </em><em>rounded</em><em> </em><em>it</em><em> </em><em>for</em><em> </em><em>simplicity</em><em>.</em><em>]</em>
Answer:
394.9 cm
Step-by-step explanation:
The formula for a cone's surface area is A = π r ( r + √r^2 + h^2 ).
r = radius
h = height
The Pythagorean theorem, a^2 + b^2 = c^2, will be needed to find the height.
Plug in the values.
a(unknown)^2 + 6^2 = 15^2
A + 36 = 255
255 - 36 = 189
√189 ≈ 13.7
Surface area formula, plug in the values.
A = 3.14 × 6 ( 6 + √6^2 + 13.7^2 )
*PEMDAS*
A = 3.14 × 6 ( 6 + √36 + 187.69 )
A = 3.14 × 6 ( 6 + √223.69 )
A = 3.14 × 6 ( 6 + 14.95 )
A = 3.14 × 6 ( 20.96 )
A = 3.14 × 125.76
A = 394.8864
*round to nearest tenth*
A = 394.9 cm
Hope this helps! :)
2 is a factor of 4x + 2y
2( 2x + y)
Answer:
Proved Below
Step-by-step explanation:

Hence, Proved that
is equivalent to
.