Answer: Choice A
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The first term is 8 as this is the y coordinate of the point when x = 1.
The second term is 4 (since y = 4 when x = 2)
etc etc
The sequence of terms is: 8, 4, 2, 1, ...
Each time we're dividing by 2, or multiplying by 1/2. This is why r = 1/2
Put this together and we have this geometric nth term formula
an = 8*(1/2)^(n-1)
This means the answer could be A or it could be C. However, we can rule out choice C because the rate of change is not positive. Draw a line through (1,8) and (3,2) and you'll see this line has a negative slope. So the rate of change is negative.
The only answer left is choice A.
Answer: 30:5
Step-by-step explanation:
Five levels were beaten so thirty levels are left so whats left to what’s beaten is 30:5
Answer:
6: the scale is by 2s, which spreads the data out more.
7: more saxophones can fit in the box than the others.
Answer:
y = 1.33
Step-by-step explanation:
What you could do is :
x-1x = 2y + 1x-1x + y = 4
get rid of the x
>>> 2y + y = 4
then combine the like terms or y:
2y + y
>>> 3y = 4
finally: divide 4/3
3y/3= 4/3
>>> y = 1.33
Hope it Helps!
