For Exercises 91−98, use the graph to solve the equation and inequalities. Write the solutions to the inequalities in interval notation. (See Examples 8 − 9 ) 95. a . − 3 ( x + 2 ) + 1 = − x + 5 b . − 3 ( x + 2 ) + 1 ≤ − x + 5 c . − 3 ( x + 2 ) + 1 ≥ − x + 5
For Exercises 91−98, use the graph to solve the equation and inequalities. Write the solutions to the inequalities in interval notation. (See Examples 8 − 9 ) 95. a . − 3 ( x + 2 ) + 1 = − x + 5 b . − 3 ( x + 2 ) + 1 ≤ − x + 5 c . − 3 ( x + 2 ) + 1 ≥ − x + 5
Solution Summary: The author explains how to solve the equation -3(x+2)+1=-x +5 graphically. The point of intersection is (-5,10).
For Exercises 91−98, use the graph to solve the equation and inequalities. Write the solutions to the inequalities in interval notation. (See Examples 8−9) 95.
a
.
−
3
(
x
+
2
)
+
1
=
−
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+
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b
.
−
3
(
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+
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+
1
≤
−
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+
5
c
.
−
3
(
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+
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≥
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I want to learn this topic l dont know anything about it
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
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