2 years ago

SOMEONE ANYONE PLEASEE

Mathematics

2 answers:

nadya68 [22]2 years ago

7 0

Answer:

The middle

Step-by-step explanation:

svetlana [45]2 years ago

5 0

The middle I believe .....

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The length of each edge of a cube is decreased by 40 percent By what percent does the volume of the cube decrease? Express your

lora16 [44]

Answer:

78% (to the nearest tenth)

Step-by-step explanation:

Volume of a cube = (length )³

Let the length of the cube = y

Original volume = y³

if the length is decreased by 40%, then new length = 1- (40% of y)

= 1-0.4y

= 0.6%

New volume (after decreasing the length) = (0.6y)³

= 0.216‬‬y³

% Volume decrease = (Original volume - New volume)/Original Volume x 100%

= (y³ - 0.216‬‬y³)/ y³ x 100%

= 0.784y³/y³ x 100%

=78.4%

≈78%

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The combined perimeter of the rectangle and triangle is 63 inches. The model shows the dimensions of the rectangle. What is the

katrin2010 [14]

*See diagram in the attachment

Answer:

27 inches

Step-by-step explanation:

Combined perimeter = perimeter of rectangle + perimeter of triangle = 63 inches

Perimeter of rectangle = 2(L + W)

L = 11 in.

W = 7 in.

Perimeter of rectangle = 2(11 + 7) = 36 in.

Let perimeter of the triangle be represented by x

Therefore:

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x = 63 - 36

x = 27

Perimeter of triangle = 27 inches

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valentina_108 [34]

Answer:

(3) Diagonals are perpendicular

Step-by-step explanation:

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2 years ago

SOMEONE ANYONE PLEASEE​

SOMEONE ANYONE PLEASEE