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3 years ago

If the side of a rectangular prism is doubled, how would this affect the area? How about the volume?

Mathematics

1 answer:

professor190 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

The area will be increased by 4 times and volume will be increased by 8 times

Area of rectangular prism = 2 (lb+bh +hl)

When sides are doubled, Area = 2 (2l * 2b +2b *2h + 2h*2l)

= 4 * 2 (lb+bh +hl)

Volume of rectangular prism = lbh

When sides are doubled, Volume = 2l * 2h * 2b = 8 lbh

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Aneli [31]

Answer:

<h3>The given set of polynomials f(x) and g(x) are closed under subtraction.</h3>

Step-by-step explanation:

Given that the functions f ad g are defined by

$f(x)=7x^3-3x^2-x+14$ and $g(x)=2x^3+2x+5$ respectively.

<h3>To show that the set of polynomials is closed under subtraction :</h3>

Now subtract the given polynomials

$f(x)-g(x)=(f-g)(x)$

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∴ $f(x)-g(x)=5x^3-3x^2-3x+9$

When subtracting the polynomials the variables and their exponents remains same only variation in their coefficients.

<h3>Hence the given polynomials f(x) and g(x) are closed under subtraction.</h3>

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Hence showed.

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Step-by-step explanation:

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4 years ago

Question 1: The Millers have hired an interior designer to decorate their family room. they want to have a 22" by 30" oil painti

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Answer: Total molding cost is $197.20.

Step-by-step explanation:

Since we have given that

Length of oil painting frame = 22 inch

Width of oil painting frame = 30 inch

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4+22+4 = 30 inches

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4+30+4 = 38 inches

So, Perimeter of molding would be

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Cost per inch = $1.45

So, Total molding cost would be

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3 years ago

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tester [92]

DEF is a isosceles right triangle, so DE =EF. apply Pythagoras:

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3 years ago