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
notka56 [123]
3 years ago
7

What is AB? Please show work...

Mathematics
1 answer:
Grace [21]3 years ago
8 0
The formula to find AB is a^2+b^2=c^2, where a is the left side, b is the bottom, and c is  x.  2^2 is 4, so it asks for the sq. rt. of 8, which is 2.83 (rounded to the nearest hundredth).
You might be interested in
The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month. Assume that this mean was base
Effectus [21]

Answer:

a) 17.09 hours

b) The 95% confidence interval estimate of the population mean flying time for the Pilots is between 31.91 hours and 66.09 hours

Step-by-step explanation:

We have the standard deviation of the sample, so we use the t distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 49 - 1 = 48

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 48 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0106

The margin of error is:

M = T*s = 2.0106*8.5 = 17.09

s is the standard deviation of the sample. 17.09 hours is the answer for a.

The lower end of the interval is the sample mean subtracted by M. So it is 49 - 17.09 = 31.91 hours

The upper end of the interval is the sample mean added to M. So it is 49 + 17.09 = 66.09 hours

The 95% confidence interval estimate of the population mean flying time for the Pilots is between 31.91 hours and 66.09 hours

8 0
3 years ago
A box contains 100 colored chips; some are pink and some are blue. Milton chooses a chip at random, records the color, and place
Lena [83]

The approximate number of pink chips is 40. Here's why: what you need to do is set up the problem as shown below. 12 goes above 30 because you have to know what the total number of chips chosen is in order to relate it to 100 chips. From there, all you have to do is cross-multiply and divide (or my middle school teacher used to call it fish.... I'll explain why). First you are going to draw a line from the 100 to the 12 and multiply them. then you are going to curve the line that you will draw from the 12 to the 30 and divide the product of 12 and 100 by 30. Then you will draw a line from the 30 to the X meaning that the quotient that you find from the product of 120 and 100 divided by 30 equals X.  Hope that helps.

12      x    

30   100  

4 0
3 years ago
Read 2 more answers
I need help please help me :(
Studentka2010 [4]

Answer:

IM SUCH AN INFLUENCER :D

Step-by-step explanation:

5 0
2 years ago
Help me with writing a check please
Dennis_Churaev [7]

Answer: pay to the order of: Price Chopper.... $145.19.... next line: One hundred forty-five and 19/100.... bottom left line: whatever the money is for.... next line: signature.        5. fifty-four and 68/100 dollars  6. One hundred seventeen and 92/100 dollars      7. twenty dollars

Step-by-step explanation:

3 0
2 years ago
WILL MARK BRAINLIST the answer is not 21.5​
vaieri [72.5K]
Answer: 137... well i think because 180-43= to 137.
8 0
3 years ago
Other questions:
  • •
    10·1 answer
  • Charlie, who is 4 feet tall, walks away from a streetlight that is 15 feet high at a rate of 6 feet per second, as shown in the
    11·1 answer
  • Who has discord if u do add me<br> treshawn478#8007
    12·1 answer
  • Convert 8% to a a fraction in lowest terms and a decimal.
    5·2 answers
  • When 130 is added to a number it equals 60 more than 2 times the number.
    14·2 answers
  • One day Susan's mom gave her a bag of candy. Three days later she had 28 pieces of candy. Eight days after her mom gave her the
    11·1 answer
  • A car travels 150 miles on 12 gallons of gasoline. How many gallons of gasoline are needed to travel 500 miles.
    6·2 answers
  • How to convert square meters into mm
    7·1 answer
  • Find the missing length of the right triangle.
    12·1 answer
  • Help please please please​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!