sydney636935
Answered

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please help me with questions 8 and 10. it would literally save my life :)

Please Help Me With Questions 8 And 10 It Would Literally Save My Life class=

Sagot :

Answer:

Step-by-step explanation:

8)

around the tank = 12 * circumference

circumference = d[tex]\pi[/tex]

c = 30[tex]\pi[/tex]

c = 94.2477796

area around tank = 12 * 94.2477796 = 1130.973355

now top of tank

area of a circle = [tex]\pi[/tex][tex]r^{2}[/tex]

[tex]\pi[/tex]*[tex]15^{2}[/tex] = 706.858347

add the two surface areas together for the total

706.858347 +  1130.973355 = 1837.832

total surface area = 1837.8 [tex]ft^{2}[/tex]

10) all I see in the picture is a cylinder, but it's saying "composite" shape so I know there is probably more, but the cylinder is

[tex]\pi[/tex]*[tex]3^{2}[/tex]* 10 = 282.7 [tex]ft^{2}[/tex]

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