3 years ago

A cube with 4 faces has a length of 4.5cm.find the total surface area

Mathematics

2 answers:

maks197457 [2]3 years ago

7 0

the answer is 121.5cm^2

qwelly [4]3 years ago

4 0

Answer:

81 cm square

Step-by-step explanation:

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3 years ago

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$Y= x^2 -5$

We need to solve for x, we need to get x alone

$Y= x^2 -5$

Lets start by removing -5

Add 5 on both sides

$y + 5= x^2 -5 + 5$

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2 years ago

Alexander says that 3x + 4y is equivalent to (3)(4) + xy because of any order, any grouping. Is he correct why or why not

snow_lady [41]

Answer:

Alexander is incorrect because the expressions are not equivalent.

Step-by-step explanation:

If the expression is evaluated for any value of x, y; the result will not be same.

For instance, let assume x = 1 and y = 2

3x + 4y = 3 + 4 = 7

(3)(4) + xy = (3)(4) + (1 * 2) = 12 + 2 = 14

So, the expressions are not the same and Alexander is incorrect.

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3 years ago

A cube with 4 faces has a length of 4.5cm.find the total surface area​

A cube with 4 faces has a length of 4.5cm.find the total surface area