Identify the property used to create the equivalent expression. (3 + 4) + 6 = 3 + (4 + 6)

Answers

Answer 1

Answer:

Answer: associative

Step-by-step explanation:

the associative property is used to state that numbers in an addition expression can be grouped differently still giving the same sum

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How many angles does a cube have?

Answers

A cube is a geometric three-dimensional solid object. It constitutes 6 square faces, sides and three meeting at each vertex. It is the only regular hexahedron. A cube has a fixed number of perpendicular angles. Typically, it has 8 perpendicular angles and each spigolo or corner has 3 angles. Since it has 8 perpendicular (⊥) angles and 3 angles in each corner, it makes up 24 angles.
All 8 ⊥ angles and 3 angles in each corner mean: 8*3=24.

Therefore, a cube has 24 right angles.

What is the area of the triangle bounded by the line 3x+2y=12 and the x- and y- axes?

Answers

Answer:

Step-by-step explanation:

If x=0, then the y axis is 6

If y=0, then the x axis is 4

The base is 4 and the height is 6

4 x 6 / 2 = 12

Find the perimeter and area of a rectangle whose length is (x + 1) and whose width is (x - 3). Express your answer in terms of x. With explanation if you can plz and thx

Answers

Answer:

Perimeter=2L+2w

P=2(x+1)+2(x-3)

P=2x+2+2x-6

P=4x-4

Area=Lxw

A=(x+1)x(x-3)

A=x^2-3x+x-3

A=x^2-2x-3

Step-by-step explanation:

I don't have one :v

Final answer:

The perimeter of the rectangle is 4x - 4 and the area is x^2 - 2x - 3.

Explanation:

The perimeter of a rectangle is calculated by the formula 2*(Length + Width). Hence, the perimeter for the rectangle in question will be 2*((x + 1) + (x - 3)) = 2*(2x - 2) = 4x - 4.

The area of a rectangle is calculated by the formula Length * Width. Therefore, the area for the rectangle equals (x + 1) * (x - 3) = x^2 - 3x + x - 3 = x^2 - 2x - 3.

Learn more about Rectangle Area and Perimeter here:

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-9(m + 2) + 4(6 – 7m)

Answers

I think it is -37m+17 but I am not sure

If f(x) = 2x and g(x)=1/x, what is the domain of (f o g)(x)?x_>0
all real numbers except x = 0
x<_0
all real numbers

Answers

(X)=2X-ALL real numbers except x=0x<_0

Figure WXYZ is a rectangle with a semicircle added to its base.What is the perimeter of figure WXYZ? Use 3.14 to approximate pi.

Answers

Figure WXYZ is a rectangle that has a semicircle added to its base. The rectangle has a length of sixteen inches and a width of seven inches. The semicircle has a diameter equal to the length of the rectangle.

Given:
Rectangle: Length = 16 inches ; width = 7 inches
Semicirle added to its base, the length of the rectangle. Only one length.

We need to get the circumference of the semi circle and add the length and 2 widths of the rectangle.

Circumference of a circle = 2πr ⇒ 2 * 3.14 * 8 inches = 50.24
Circumference of a semicircle = 50.24/2 = 25.12 inches
Widths of the rectangle = 2 * 7 inches = 14 inches

Perimeter of the figure = 25.12 in + 14 in + 16 in = 55.12 inches.

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