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Aleonysh [2.5K]

3 years ago

8

What is the volume of the cube shown? 24 in.

1 answer:

Natali5045456 [20]3 years ago

8 0

Answer:

11.39

Step-by-step explanation:

a^3

2 1/4 = 2.25^3

11.39

:)

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2x² + 4x + 4 + x² + 1 = 180

Tasya [4]

Step-by-step explanation:

$2 {x}^{2} + 4x + 4 + {x}^{2} + 1 = 180$

$3 {x}^{2} + 4x + 5 = 180$

${3x}^{2} + 25x - 21x - 175 = 0$

$x \times (3x + 25) - 7(3x + 25) = 0$

$(3x + 25) \times (x - 7) = 0$

$3x + 25 = 0 = x - 7 = 0$

$x = - \frac{25}{3} = x = 7$

$= x_{1} = - \frac{25}{3} . \: \: x_{2} = 7$

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3 years ago

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Keith_Richards [23]

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3 years ago

Which number is a solution of the inequality

SashulF [63]

x(7-x)-8>8-8

x(7-x)-8>0

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3 years ago

Graph the inequality;y>-5x+3

Evgesh-ka [11]

Start your dot on 3 on the y axis. Move is downwards on the y axis by 5 everytime you move over once on the x axis. Shade all the stuff above the line since it says y is greater than -5x+3

7 0

3 years ago

The coordinates of the vertices of a regular polygon are given. Find the area of the polygon to the nearest tenth.

alexandr1967 [171]

Answer:

The area is equal to $8\ units^{2}$

Step-by-step explanation:

we have

A(0, 0), B(2, -2), C(0, -4), D(-2, -2)

Plot the figure

The figure is a square (remember that a regular polygon has equal sides and equal internal angles)

see the attached figure

The area of the square is

$A=AB^{2}$

<u><em>Find the distance AB</em></u>

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$AB=\sqrt{(-2-0)^{2}+(2-0)^{2}}$

$AB=\sqrt{(-2)^{2}+(2)^{2}}$

$AB=\sqrt{8}$

$AB=2\sqrt{2}\ units$

<u><em>Find the area of the square</em></u>

$A=(2\sqrt{2})^{2}$

$A=8\ units^{2}$

4 0

3 years ago