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3 years ago

Suppose the box shown needs to be painted. Which measurement BEST describes the amount of paint needed to paint the

Mathematics

1 answer:

mixer [17]3 years ago

3 0

Answer:

A) 684 in^2

Step-by-step explanation:

Since it needs to be painted all around the box we have to find the surface area of the box

The surface area of cuboid is

=2lw+2lh+2hw (l: length, w: width, h: height)

=2×15×12+2×6×15+2×6×12

= 684 in^2

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2 years ago

Let A = {the Rationals) and B = {the Irrationals). Find AU B.

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Answer:

Option B.

Step-by-step explanation:

It is given that

A = {The Rationals}

B = {The Irrationals}

We need to find the set A∪B.

If we have two sets X and Y then union of these sets (X∪Y) contains all the elements of set X, of set Y or both.

It is given that A is the set of rations and B is the set of irrational, so the union A∪B is the combined set of all rational or irrational numbers.

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3 years ago

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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2 years ago

Catron evaluates the expression (negative 9) (2 and two-fifths) using the steps below.

Vlad [161]

Answer:

Catron's error is

"She did not follow order of operations"

Step-by-step explanation:

Catron evaluates the expression (negative 9) (2 and two-fifths)

That expression can be written as below

$(-9)(2\frac{2}{5})$

Catron's error is

"She did not follow order of operations"

The corrected steps are

Step1: Given expression is $(-9)(2\frac{2}{5})$

Step2: Convert mixed fraction into improper fraction

$(-9)(2\frac{2}{5})=(-9)(\frac{12}{5})$

Step3: Multiplying the terms

$(-9)(2\frac{2}{5})=-7\frac{-108}{5}$

Therefore solution $(-9)(2\frac{2}{5})=-7\frac{-108}{5}$

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3 years ago

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