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ncosmebaez15
28.08.2020 •
Mathematics
The radius of a cylinder gift box is box is 3X +1 inches the height of the gift box is twice the radius what is the surface area of the cylinder write your answer as a polynomial in standard form
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Ответ:
The surface area of the gift box is =![A = \frac{1188}{7}x^{2}+ \frac{774}{7}x +\frac{132}{7}](/tpl/images/0732/0249/95899.png)
Step-by-step explanation:
The surface area of the cylinder can be calculated using this formula:
in this case, r is not a number, but rather an expression, which is r =
.
The height of the gift box is twice the radius, which is h =![2(3x+1)= 6x+2](/tpl/images/0732/0249/7f50f.png)
To get our curved surface area, we carefully put the expressions for h and r into the equation.
The surface area of the gift box is =![A = \frac{1188}{7}x^{2}+ \frac{774}{7}x +\frac{132}{7}](/tpl/images/0732/0249/95899.png)
Ответ:
5x feet or x times 5.
Step-by-step explanation: