Taking color into account, does the shape have rotational symmetry? If so, what is the angle of rotation, rounded to the nearest
degree?
A. no, 0°
B. yes, 26°
C. yes, 28°
D. yes, 30°
A. no, 0°
B. yes, 26°
C. yes, 28°
D. yes, 30°
2 answers:
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The table models an exponential relationship, and the equation of the table is
The table of values is given as:
x 0 1 2 3 4
y 4 2 1 1/2 1/4
The above table shows an exponential model
An exponential model is represented as:
When x = 0 and y = 4, we have
Evaluate
a = 4
When x = 1 and y = 2, we have
Evaluate
Substitute 4 for a
4b = 2
Divide both sides by 4
b = 1/2
Substitute 4 for a and 1/2 for b in
Hence, the equation of the table is
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