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matrenka [14]
3 years ago
13

I will give you 5 stars and a heart.

Mathematics
2 answers:
Bond [772]3 years ago
7 0
Ok so a rectangular prism is the same as a rectangular cuboid.

The surface area is all the areas of the faces added together ->

There are three different faces that occur twice

length -> l
width -> w
height ->h

2( l * w ) + 2( l * h ) + ( w * h )

2 ( 10 * 4.5 ) + 2 ( 10 * 8.75 ) + 2 ( 4.5 * 8.75 ) = 343.75 cm2

Therefore it's A 

Hope this helps :P
lesantik [10]3 years ago
3 0
The surface area is 343.75 option A
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Six more than five times a number (x)
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Answer:

5x + 6

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six more than five times <u>a number</u>

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One of the roots of the quadratic equation x2−5mx+6m2=0 is 36. Find the greatest possible value of the second root. Help needed
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<h2>The greatest possible value of the second root, β = 54 </h2>

Step-by-step explanation:

The given quadratic equation:

x^2-5mx+6m^2=0

Let α and β be the roots of the given quadratic equation.

α = 36

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The product of the roots,

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From equations (1) and (2), we get  

⇒ (\dfrac{36+\beta}{5})^{2}=6\beta

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⇒ β(β - 54) - 24(β - 54) = 0

⇒ (β - 54)(β - 24) = 0

⇒ β - 54 = 0 or, β - 24 = 0

⇒ β = 54 or, β = 24

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3 years ago
A counter in Marvin's kitchen is 4 feet wide and 10 feet long. Marvin wants to replace the counter with a granite countertop, wh
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3 years ago
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