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marishachu [46]
3 years ago
15

Find the surface area of a cube with sides = 9 inches. Think about finding area of 1 face and then multiplying by 6.

Mathematics
2 answers:
nadezda [96]3 years ago
7 0

Answer:

Step-by-step explanation:

babunello [35]3 years ago
4 0
<h2>Answer:</h2>

<u>We know that cube is made up of 6 enclosed square together of side 9cm</u>.

Area of one square = a²

= 9² = 81cm².

So, Area of 6 faces = 6a²

= 6 × 81 = 486cm².

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What is 2x + 3y -4 =? <br><br> x = 2 , y =4
Vanyuwa [196]

Answer:

4X+12Y-4

Step-by-step explanation:

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3 years ago
When rolling a number cube 600 Times, predict the relative frequency of rolling a 3 or 6
Flauer [41]

Answer:

The frequency of rolling a 3 or a 6 would be the same even if you try thousands or millions times.

The probability of rolling a 3 is: 1/ total outcomes probability = 1/6

The probability of rolling a 6 is: 1/ total outcomes probability = 1/6

The probability of rolling a 6 or a 3 = 2/ total outcomes probability = 2/6 = 1/3

Therefore, if you rolling the cube 600 times, the probability of rolling a 3 or a 6 is still 1/6. If 3 and 6 are both allowed, the probability would become 1/3

Hope this helped :3

7 0
3 years ago
You know the measure of the exterior angle which forms a linear pair with the vertex angle. Describe two ways you can find measu
aev [14]

Answer:

Step-by-step explanation:

A linear pair are two given angles whose sum is equal to 180^{o}.

Let the exterior angle be represented by x^{o}, and the three interior angles of the triangle be represented by a^{o}, b^{o} and c^{o}.

Assume that the vertex angle c^{o} is the linear pair to the exterior angle x^{o}.

i.e            x^{o} + c^{o} = 180^{o}  (sum of angles on a straight line)

Thus,

i. a^{o} +  b^{o} = x^{o}  (sum of two opposite interior angles is equal to an exterior angle)

⇒ a^{o}  = x^{o} - b^{o}

Also,

b^{o}  = x^{o} - a^{o}

But,

a^{o} + b^{o} + c^{o} = 180^{o}   (sum of angles in a triangle)

⇒ c^{o} = 180^{o} - (a^{o} +  b^{o})

and

a^{o} + b^{o} = 180^{o} - c^{o}

ii. a^{o} + b^{o} + c^{o} = 180^{o}   (sum of angles in a triangle)

a^{o} = 180^{o} - (b^{o} + c^{o})

Also,

a^{o} +  b^{o} = x^{o}

⇒ b^{o} = x^{o} - a^{o}

c^{o} = 180^{o} - x^{o}

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3 years ago
What is an equivalent expression for 65 ÷ 63.
GREYUIT [131]

Answer:

The equivalent expression is 65/63

3 0
3 years ago
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A square has a side length of 2x+5, write an expression to find the perimeter of the square
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Answer:

4(2x+5) or 8x+20

Step-by-step explanation:

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