Answer:
Part 9)
Part 10)
Step-by-step explanation:
we know that
The <u><em>Midpoint Theorem</em></u> states that: The segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side
Part 9) we know that
Point Q is the midpoint segment XY (QY=QX)
Point R is the midpoint segment XW (RW=RX)
Applying the Midpoint Theorem
RQ is parallel to WY
and
we have
substitute
solve for x
Part 10) we know that
Point B is the midpoint segment TS (BS=BT)
Point C is the midpoint segment RS (CS=CR)
Applying the Midpoint Theorem
BC is parallel to TR
and
we have
substitute
solve for x
Answer:
u = 2/3
Step-by-step explanation:
Simply divide both sides by -8:
u = (-16/3)/-8
If you don't have a calc, use KCF:
u = (-16/3)(-1/8)
u = 16/24
u = 2/3
Answer:
im sorry i cant figure out how to remove this
Step-by-step explanation:
Answer:
The median for X is "33"
The median for F is "10.5"
Step-by-step explanation:
Answer:
The 95% confidence interval estimate for the population mean life of compact fluorescent light bulbs in this shipment is between 7,255 hours and 7,745 hours.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 7500 - 245 = 7255 hours.
The upper end of the interval is the sample mean added to M. So it is 7500 + 245 = 7745 hours.
The 95% confidence interval estimate for the population mean life of compact fluorescent light bulbs in this shipment is between 7,255 hours and 7,745 hours.