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GrogVix [38]
3 years ago
13

What is the value of the ratio of the surface area to the volume of the right prism?

Mathematics
2 answers:
larisa [96]3 years ago
6 0
The correct Answer is D. :)
Scrat [10]3 years ago
5 0
<span>The main formula of the surface area of a right prism is A = 2 x (w x h + l x w + l x h) , where w=7, l=8, and h=4, so the surface area value is A=2(7x4+8x7+8x4)=2(28+56+32=2x116=232. Besides, the volume of a right prism can be calculated with the formula V= l x w x h =8x 7x 4 = 224. Finally the ratio of the surface area to the volume is A / V= 232 / 224 = 1.04. the true answer is D</span>
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write the equation of a line in slope intercept form that passes through (2 -2) and is parallel to 2x+4y=8
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Answer:

y= -1/2x-1

Step-by-step explanation:

1) put the equation in y-intercept form to find the slope of the original line 2x+4y=8

y=8/4-2x/4

y=2-1/2x

slope of second line will be -1/2

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y+2= -1/2x+2/2

y+2 = -1/2x + 1

y+2-2=-1/2x + 1 -2 ====>>>>  y= -1/2x-1

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Masja [62]

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Gelneren [198K]

Answer:

11

Step-by-step explanation:

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3 years ago
Sergio works at a bakery and needs to cover
Elan Coil [88]

Answer:

The surface area that Sergio needs to frost on each cake is 3,238 square centimeters

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The surface area of the cylindrical cake is equal to the lateral area plus the area of the top of cylinder (remember that the bottom of the cake does not need frosting)

so

SA=\pi r^{2}+2\pi r h

we have

r=40.2/2=20.1\ cm ---> the radius is half the diameter

h=15.6\ cm

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substitute the given values

SA=(3.14)(20.1)^{2}+2(3.14)(20.1)(15.6)

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SA=3,238\ cm^2

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