Answer: Option A.
Step-by-step explanation:
You need to use this formula for calculate the surface area of the right cylinder:

Where "r" is the radius and "h" is the height.
You can identify in the figure that:

Knowing this, you can substitute these values into the formula
, therefore you get that the surface area of this right cylinder is:


Answer:
See explanation
Step-by-step explanation:
<u><em>1st photo:</em></u>
x =

= 15
x =
<u><em>2nd photo:</em></u>
(a) GEH ~ FGH ~ FEG
<em>similar triangles, use similar corners in the right order</em>
(b)
AND 
<em>similar triangles, use similar sides in proportion</em>
<em />
<u><em>3rd photo:</em></u>
x = 4.5 or 4 1/2

<em>2x = 9</em>
<em>x = 4.5 or 4 1/2</em>
<em />
<u><em>4th photo:</em></u>
Length of string = 118.2 ft
<em>sin(40) = 76/x</em>
<em>x = 76/sin(40) = 118.2</em>
We have that
y = 2(0.45)^x
in this problem
2-----------> is the Coefficient
0.45-------> is the Base
<span>x-----------> is the Exponent
we know that
</span><span>If
the base is less than 1 (but always greater than 0), the function will be
exponential decay
</span>It is decay because as x values
increase, y values decrease.
<span>0.45 < 1 and 0.45 > 0
therefore
the equation
</span>y = 2(0.45)^x
represents <span>exponential
decay
</span>
the answer is
exponential decay<span>
</span>
Answer:
10×-35
Step-by-step explanation:
5×2=10
5×7=35
So the answer is 10x-35
Answer:

Step-by-step explanation:
Given
j
Required
Express 7 less than 24 * j
First, we have:

7 less is then expressed as:
