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3 years ago

Question 11(Multiple Choice Worth 1 points)

Mathematics

1 answer:

zzz [600]3 years ago

7 0

Answer:

its c ok

Step-by-step explanation:

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please help. answer is 62.1m(squared) and the objects are composite! please show the work, no matter what i do i cant seem to ge

yuradex [85]

Answer:

$SA=62.1\ m^2$

Step-by-step explanation:

step 1

Find the surface area of the smaller rectangular prism

$SA=2B+Ph$

where

B is the area of the base

P is the perimeter of the base

h is the height of the prism

$SA=2[(2.5)(1.5)]+2(2.5+1.5)(1.5)$

$SA=7.5+12=19.5\ m^2$

step 2

Find the surface area of the cube

$SA=6s^2$

where

s is the length side of the cube

$SA=6(2.5^2)=37.5\ m^2$

step 3

Find the lateral area of the cylinder

$LA=\pi DL$

where

D is the diameter of the base

L is the length of cylinder

$LA=(3.14)(0.5)(3.5)=5.495\ m^2$

step 4

Find the area of the base of cylinder

$A=\pi r^{2}$

we have

$r=0.5/2=0.25\ m$ ----> the radius is half the diameter

$A=(3.14)(0.25)^{2}=0.19625\ m^2$

step 5

Find the surface are of the composite figure

we know that

The surface area of the composite figure is equal to the surface area of the smaller rectangular prism plus the lateral area of the cylinder, plus the surface area of the cube, minus the area of the two bases of cylinder

$SA=19.5+5.495+37.5-2(0.19625)=62.1\ m^2$

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3 years ago

Please help me. It would mean a lot

masya89 [10]

Answer:

8+2x and 3(x+4)-(4+x)

Step-by-step explanation:

2(x+4)=2x+8 interchanged to 8+2x

3(x+4)-(4+x) simplified to

3x+12-4-x collect like terms together 3x-x+12-4=2x+8

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3 years ago

PLEASE HELP ME !!!James had a large bag of raisins and he ate 3/4 of it over the weekend. On Monday, he decided to share the rem

Bumek [7]

The ans is 1/12 while share with 3

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3 years ago

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What is a vetor space?

zaharov [31]

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Jessica has no books. wesley has 2 more books than jessica. how many books does wesley have?

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