Evaluate 2(x + 1) - 3 when x= 6. A. 8 B. 5 c. 11 D. 10

Mathematics

2 answers:

Brrunno [24]3 years ago

6 0

2(x+1) -3
2(6+1) -3
2(7) -3
14 -3
11

ANSWER IS:
C 11

7nadin3 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

2(x + 1) - 3

Let x= 6

2(6+1) -3

Parentheses first

2(7) -3

Then multiply

14-3

Then subtract

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• How do you use the distance formula and slope formula to prove properties of polygons?

patriot [66]

Answer:

distance formula= $\sqrt{x} (x_{2} -x_{1} )^{2} + (y_{2} -y_{1} )^{2}$ = find the length(units) using coordinates.

slope formula= $m=\frac{rise}{run} =\frac{y_{2}-y_{1} }{x_{2} -x_{1} }$ = determines slope of a line using two points on the line(coordinates)

When working with polygons the main properties which are important are:

The number of sides of the shape.

The angles between the sides of the shape.

The length of the sides of the shape.

length , width

straight lines , angles, vertices, vertex

A polygon is any 2-dimensional shape formed with straight lines.

a plane figure with at least three straight sides and angles, and typically five or more.

Step-by-step explanation:

<h2><u>answer= use distance and slope to determine that opposite side of a polygon are the same length and same slope</u></h2>

6 0

3 years ago

the sum of the perimeter of two squares is 40cm while the sum of the area is 58cm². Find length the side of the square.

tia_tia [17]

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