If the sixth term of a sequence is 128 and the common ratio is 2, then what is the first term? 1, 2 or ,4
1 answer:
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Answer:
x=2, y=3
Step-by-step explanation:
First, graph both equations on a rectangular coordinate system (see attached screenshot). Then, simply figure out where these two lines intersect. Since they intersect at (2,3), x=2 and y=3.
Plugging these values in the equations for x and y, you can see if these are the correct answers:
(3)=3(2)-3, (2)+(3)=5
Since both of these are true, you have the right answer.
Hope this helps!
Answer:
0.0274
Step-by-step explanation:
The mean is and the standard deviation is
Calculate
for
If then
and
Use table for normal distribution probabilities to get that