Human Memory Model Students in a mathematics class took an exam and then took a retest monthly with an equivalent exam. The average scores for the class are given by the human memory model f t = 80 − 17 log t + 1 , 0 ≤ t ≤ 12 where t is the time in months. (a) Use a graphing utility to graph the model over the specified domain. (b) What was the average score on the original exam t = 0 ? (c) What was the average score after 4 months? (d) What was the average score after 10 months?
Human Memory Model Students in a mathematics class took an exam and then took a retest monthly with an equivalent exam. The average scores for the class are given by the human memory model f t = 80 − 17 log t + 1 , 0 ≤ t ≤ 12 where t is the time in months. (a) Use a graphing utility to graph the model over the specified domain. (b) What was the average score on the original exam t = 0 ? (c) What was the average score after 4 months? (d) What was the average score after 10 months?
Solution Summary: The author explains how to graph the human memory model f(t)=80-17mathrmlog
Students in a mathematics class took an exam and then took a retest monthly with an equivalent exam. The average scores for the class are given by the human memory model
f
t
=
80
−
17
log
t
+
1
,
0
≤
t
≤
12
where
t
is the time in months.
(a) Use a graphing utility to graph the model over the specified domain.
(b) What was the average score on the original exam
t
=
0
?
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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