$a_1=\dfrac{1}{4};\ a_2=\dfrac{1}{8};\ a_3=\dfrac{1}{16};\ a_4=\dfrac{1}{32};...\\\\it's\ a\ geometric\ sequence\ where\ a_1=\dfrac{1}{4}\ and\ r=\dfrac{1}{8}:\dfrac{1}{4}=\dfrac{1}{2}\\\\a_n=a_1r^{n-1}\\\\n=8\\\\a_8=\dfrac{1}{4}\cdot\left(\dfrac{1}{2}\right)^{7-1}=\dfrac{1}{4}\cdot\left(\dfrac{1}{2}\right)^6=\dfrac{1}{4}\cdot\dfrac{1}{64}=\dfrac{1}{256}$

4 0

2 years ago

The step function f(x) is graphed. What is the value of f(0)? -2 -1 0 1

yarga [219]

Answer:

The value of f(0) is Option (A) : - 2

5 0

3 years ago

Without calculating would 0.4+(2+0.6)be less than, greater than,or equal to 3? Explain

masya89 [10]

The answer would be “Greater than.”

3 0

3 years ago