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3 years ago

This is a picture of a cube and the net for this cube. plz help asap

Mathematics

2 answers:

Yakvenalex [24]3 years ago

8 0

I think A not so sure

Kipish [7]3 years ago

8 0

Answer:

Option D. 1350 mm² is the answer.

Step-by-step explanation:

In the given picture the cubes are arranged in a way that only 6 faces of the cubes are visible. Each side of the cubes are 15 mm.

So area of the each face of a cube = 15×15 = 225 mm²

Since there are 6 faces visible so total area of the picture = 6×225 = 1350 mm²

Option D. 1350 mm² is the answer.

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To the nearest tenth, what is the area of a circle whose diameter is 9 feet? Use 3.14 for π . Enter your answer in the box.

Rus_ich [418]

A=3.14*4.5^2=63.585=63.6

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3 years ago

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How many times does the diameter go around a circle?

marissa [1.9K]

Answer:

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Step-by-step explanation:

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3 years ago

Solve the following system of equations by substitution.

jasenka [17]

Answer:

The answer is B.(5,10)

Step-by-step explanation:

1. y = 2(5)

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3 years ago

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Select the polynomial that is a perfect square trinomial. 36x2 − 4x 16 16x2 − 8x 36 25x2 9x 4 4x2 20x 25.

Naya [18.7K]

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

The given polynomial is

$a) 36x^2-4x+16$

What is the form of perfect square polynomial?

$(ax+b)^2$

we solve this method by using perfect square method

add and subtract 1/9

$36x^2-4x+16+\frac{1}{9}-\frac{1}{9}$

factor 36

$\frac{143}{9}+36(x^2-\frac{x}{9}+\frac{1}{324} )$

Now complete the square

$\frac{143}{9}+36(x^2-\frac{1}{18})^2$

Therefore this is not perfect square trinomial.

Similarly for

$b) 16x^2-8x+36$

Complete square is,

$16(x-\frac{1}{4})^2+35$

This polynomial is also not perfect square trinomial.

$c) 25x^2+9x+4\\$

complete square is,

$25(x+\frac{9}{50})^2+\frac{319}{100}$

This polynomial is not perfect square trinomial.

$d)4x^2+20x+25\\$

complete square is,

$(2x+5)^2$

This polynomial is perfect square trinomial.

Therefore,

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

To learn more about perfect square trinomial visit:

brainly.com/question/1538726

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2 years ago

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Step-by-step explanation:

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2 years ago