Answer:
3 -2x +5=0
Step-by-step explanation:
Combine liked terms:
3+5x+x-1x+6+2=7x+3
3+6x-1x+8=7x+3
3+5x+8=7x+3
Subtract 3: 3+5x+8-3=7x+3-3
3+5x+5=7x
Now subtract 7x:
3+5x+5-7x=7x-7x
If you want combine liked terms:
3-7x+5x+5=0
3-2x+5=0
Hope this helps!
Answer:
0.619
Step-by-step explanation:
from the question we have the following data:
probability of motor 1 breaking = 65% = 0.65
probability of motor 2 breaking = 35% = 0.35
probability of motor 3 breaking = 5% = 0.05
since we have 3 motors the probability of any of them breaking down is =
but what the question requires from us is the conditional probability of the first one being installed
we have to solve this questions using bayes theorem
such that:
=
=
= 0.618966
approximately 0.619
therefore the conditional probability ralph installed the first motor is 0.619
Answer:
Step-by-step explanation:
A recursive formula is a formula in which each term is based on the previous term.
In a geometric sequence, each term is found by multiplying the previous term by a constant.
To get from 27 to 9, then from 9 to 3, etc., we would multiply by 1/3. This makes the common ratio 1/3.
The recursive formula for a geometric sequence is
, where
represents the general term,
, represents the previous term, and r represents the common ratio.
Plugging in our values, we have
We also have to indicate what the first term, a₁, is. In this sequence, it is 21. This gives us