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lozanna [386]
1 year ago
11

Find the surface area of a rectangle solid with edges of length 2cm,5cm, and 7cm

Mathematics
1 answer:
MissTica1 year ago
6 0

The surface area for a rectangular prism is given to be:

A=2(lw+lh+wh)

where l, w, and h are the lengths of the solid.

From the question, we have:

\begin{gathered} l=2\text{ cm} \\ w=5\text{ cm} \\ h=7\text{ cm} \end{gathered}

Therefore, the volume is calculated to be:

\begin{gathered} A=2((2\times5)+(2\times7)+(5\times7)) \\ A=2(10+14+35) \\ A=2(59) \\ A=118\text{ cm}^2 \end{gathered}

The surface area is 118 square centimeters.

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andrew11 [14]

Answer:

D. y=-1/5(x)

Step-by-step explanation:

To find the equation of a line, use the formula y=mx+b, where x and y represent your x and y coordinates, m is your slope and b is your y-intercept.

b is you y-intercept, this is where the line cuts the y-axis. We can see from the graph that the line cuts the y-axis at (0,0), so c=0.

Now we have y=mx

Sub in one of our points (10,-2):

-2=m10

m=-1/5

So our equation looks like this:

y=-1/5(x)

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3 years ago
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Answer:

D)

Step-by-step explanation:

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3 years ago
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ivann1987 [24]

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3 years ago
Heidi buys shirts for $20 and resells for $24. What is the percentage of Heidi's markup? Plz help me!!
Vadim26 [7]

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3 years ago
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Answer:

I assume Josh and Peyton are his friends and both gave him advice on what to do with half of the money from the big lottery win.

Let's say Josh said "save it or invest it for your retirement" and Peyton said "use it to keep playing the lottery.

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Step-by-step explanation:

JOSH

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Analyzing with the figures given,

$20 gets Patrick a lottery ticket.

$250,000 will get him 12,500 lottery tickets!

Whether he's buying the tickets at once or he'll play the lottery once in a while, I'll say he has good chances of winning big again.

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If the probability of winning big after purchasing 12,500 lottery tickets is close to 0 (closer to 0 than it is to 1) then Patrick should invest the $250,000 in retirement.

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3 years ago
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