christbeaub christbeaub

04-03-2017
Mathematics

contestada

The radius of a cylindrical gift box is (2x+3) in. 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.

Respuesta :

apologiabiology apologiabiology

10-03-2017

SA=2pir^2+2hpir=2pir(r+h)
h=2r=2(2x+3)=4x+6

SA=2pi(2x+3)(2x+3+4x+6)
SA=(4x+6)(pi)(6x+9)
SA=24πx²+27πx+54π

Answer Link

Otras preguntas

Describe how to determine the 75% of 250

I'LL GIVE A BRAINLIEST find the three inequalities that define the unshaded region, R

I need help with the entire page please help so I don’t fail

830 women and 170 men attended a real estate conference. What percentage of the people at the conference were women? Write your answer using a percent sign (%)

A bus leaves Flacq at 07 05 and reaches Curepipe at 08 50, after travelling a distance of 91 kilometres. Find the average speed of the bus, giving your answer i

Can someone help me please

join two pieces to form a word. pls help

A block of iron has a mass of 826 g. What is the volume of the block of iron whose density at 25°C is 7.9 ?

3. What is the value of the expression 5x -2 when x = 3/4

what is 45x9x20x6 i really need help with this