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Scorpion4ik [409]
2 years ago
15

a person is scheduled to get a raise of birr 250 every 6 months during his first 5 years on the job.if his starting salary is bi

rr25250 per year ,what will his annual salary be at the end of the third year?​
Mathematics
1 answer:
pochemuha2 years ago
6 0

Answer:

birr 27750

Step-by-step explanation:

convert years to months =  5 * 12 = 60 months  then divide by rate = 60/6 = 10 then raise is 250*10 = 2500 after 5 years then total = 2500+ 25250 = 27750 (birr)

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Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 75.6 Mbp
olga55 [171]

Answer:

a) 59.98

b) 2.99

c) 2.99

d) Significantly High

Step-by-step explanation:

Part a)

Highest speed measured = x = 75.6 Mbps

Average/Mean speed = \overline{x} = 15.62 Mbps

Standard Deviation = s = 20.03 Mbps

We need to find the difference between carrier's highest data speed and the mean of all 50 data​ speeds i.e. x - \overline{x}

x - \overline{x} = 75.6 - 15.62 = 59.98 Mbps

Thus, the difference between​ carrier's highest data speed and the mean of all 50 data​ speeds is 59.98 Mbps

Part b)

In order to find how many standard deviations away is the difference found in previous part, we divide the difference by the value of standard deviation i.e.

\frac{59.98}{20.03}=2.99

This means, the difference is 2.99 standard deviations or in other words we can say, the Carrier's highest data speed is 2.99 standard deviations above the mean data speed.

Part c)

A z score tells us that how many standard deviations away is a value from the mean. We calculated the same in the previous part. Performing the same calculation in one step:

The formula for the z score is:

z=\frac{x-\overline{x}}{s}

Using the given values, we get:

z=\frac{75.6-15.62}{20.03}=2.99

Thus, the Carriers highest data is equivalent to a z score of 2.99

Part d)

The range of z scores which are neither significantly low nor significantly​ high is -2 to + 2. The z scores outside this range will be significant.

Since, the z score for carrier's highest data speed is 2.99 which is well outside the given range, i.e. greater than 2, we can conclude that the  carrier's highest data speed​ is significantly higher.

3 0
3 years ago
Express the order pair the fact that a 16 line ad cost $50
KIM [24]

Answer: sreach it

Step-by-step explanation:

3 0
2 years ago
Dwayne is trying to find the fraction represented by the repeating decimal 0.5. He completes the three steps shown:
Studentka2010 [4]

Answer:

<h2>C. 5/9</h2><h2 />

Step-by-step explanation:

10x = 5.5

<u>   -x = 0.5</u>

9x = 5

x = 5/9

therefore, the answer is C. 5/9

8 0
2 years ago
A cone with a height of 8 inches and a radius of 6 inches was dilated using a scale factor of 2. Which
Delvig [45]

Answer:

true yes sir

Step-by-step explanation:

8 0
3 years ago
What is the other endpoint of the segment with midpoint 23 and endpoint 27
dedylja [7]

Answer:

19

Step-by-step explanation:

Difference between one end point and mid point

= 27 - 23 = 4

Other endpoint = 23 - 4 = 19

3 0
3 years ago
Read 2 more answers
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