1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mekhanik [1.2K]
3 years ago
9

2. The sum of two numbers is 12. The difference of the same two numbers is 4.

Mathematics
1 answer:
beks73 [17]3 years ago
6 0

The sum of the numbers are 12. So you can just guess and check: 1, 12; 2, 10; 3, 9; **4, 8**; You come to a conclusion of 8 and 4 matching the criteria for the problem, so your answer is 8.

You might be interested in
HELP IS THIS PROPORTIONAL
klasskru [66]
Yes! Because I took the quiz!!!!
8 0
3 years ago
Help! <br> serious answers only please!!!
Greeley [361]

Answer:

a

Explaination:  

7 0
3 years ago
Read 2 more answers
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
Please help me this is very important due today
alexdok [17]

Answer:

I'd say D) a worried young man

4 0
3 years ago
A wheel has a radius of 4 inches and travels as it spins. How far does the wheel travel in one revolution? Round your answer to
lubasha [3.4K]

Answer:

Step-by-step explanation:

5

6 0
3 years ago
Other questions:
  • If the sum of two numbers is 20 and one of those numbers is three times the other, what is the smaller number?
    5·1 answer
  • Solve the equation 6t-1/6=9
    14·2 answers
  • Y=-1/3-5 <br> Graph this line using the slope and y-intercept.
    5·1 answer
  • Round 0.743<br> to the nearest hundredth
    10·2 answers
  • 75% of the students who bought lunch yesterday ate chicken patties. If 120 students ate chicken patties, what was the total numb
    5·1 answer
  • The following is an example of what type of sequence? 3, 11, 19, 27, 35…
    13·1 answer
  • Can someone help me with this please.
    7·2 answers
  • HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPLLLLLLLLLLLLLLSSSSSSSSSSSSSSSSSSSS
    7·1 answer
  • Sarah is paid $20 an hour at her new job. She wishes to graph her total pay y, as a function of the number of hours, x. She want
    12·1 answer
  • A. in terms of the number of marked elk, what is the relative frequency of male elk, female elk, adult elk, and baby elk? write
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!