In the following exercises, plot each point in a rectangular coordinate system and identify the quadrant in which the point is located. 3. (a) ( 3 , − 1 ) (b) ( − 3 , 1 ) (c) ( − 2 , 0 ) (d) ( − 4 , − 3 ) (e) ( 1 , 14 5 )
In the following exercises, plot each point in a rectangular coordinate system and identify the quadrant in which the point is located. 3. (a) ( 3 , − 1 ) (b) ( − 3 , 1 ) (c) ( − 2 , 0 ) (d) ( − 4 , − 3 ) (e) ( 1 , 14 5 )
In the following exercises, plot each point in a rectangular coordinate system and identify the quadrant in which the point is located.
3.
(a)
(
3
,
−
1
)
(b)
(
−
3
,
1
)
(c)
(
−
2
,
0
)
(d)
(
−
4
,
−
3
)
(e)
(
1
,
14
5
)
System that uses coordinates to uniquely determine the position of points. The most common coordinate system is the Cartesian system, where points are given by distance along a horizontal x-axis and vertical y-axis from the origin. A polar coordinate system locates a point by its direction relative to a reference direction and its distance from a given point. In three dimensions, it leads to cylindrical and spherical coordinates.
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Solve the linear system of equations attached using Gaussian elimination (not Gauss-Jordan) and back subsitution.
Remember that:
A matrix is in row echelon form if
Any row that consists only of zeros is at the bottom of the matrix.
The first non-zero entry in each other row is 1. This entry is called aleading 1.
The leading 1 of each row, after the first row, lies to the right of the leading 1 of the previous row.
PRIMERA EVALUACIÓN SUMATIVA
10. Determina la medida de los ángulos in-
teriores coloreados en cada poligono.
⚫ Octágono regular
A
11. Calcula es número de lados qu
poligono regular, si la medida
quiera de sus ángulos internos
• a=156°
A= (-2x+80
2
156 180-
360
0 = 24-360
360=24°
• a = 162°
1620-180-360
6=18-360
360=19
2=360=
18
12. Calcula las medida
ternos del cuadrilá
B
X+5
x+10
A
X+X+
Sx+6
5x=3
x=30
0
лаб
• Cuadrilátero
120°
110°
• α = 166° 40'
200=180-360
0 =
26-360
360=20
ひ=360
20
18 J
60°
⚫a=169° 42' 51.43"
169.4143180-340
0 = 10.29 54-360
360 10.2857
2=360
10.2857
@Sa
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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