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
NeX [460]
3 years ago
5

What is the measurement of ∠2 and ∠11?

Mathematics
1 answer:
notsponge [240]3 years ago
3 0

Answer:

180

Step-by-step explanation:

You measure the size of an angle with a protractor. Or could be shown by an arc on the figure to indicate which angles that are congruent. Two angles whose measures together are 180° are called supplementary e.g. two right angles are supplementary since 90° + 90° = 180°.

You might be interested in
A televison that coast $360 was amrked up by 30% . what is the selling price?
anastassius [24]

Answer:

$468

Step-by-step explanation:

7 0
3 years ago
What’s the correct answer
ziro4ka [17]
It’s the 2 y=0.26x+16.9
3 0
2 years ago
Read 2 more answers
A sample of n = 4 scores is obtained from a population with a mean of 70 and a standard deviation of 8. If the sample mean corre
jeka57 [31]

Answer:

The value of the sample mean is 78.

Step-by-step explanation:

We are given that a sample of n = 4 scores is obtained from a population with a mean of 70 and a standard deviation of 8.

Also, the sample mean corresponds to a z score of 2.00.

<em>Let </em>\bar X<em> = sample mean</em>

The z-score probability distribution for a sample mean is given by;

              Z = \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \mu = population mean = 70

            \sigma = standard deviation = 8

            n = sample size = 4

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

<u>Now, we are given that the sample mean corresponds to a z score of 2.00 for which we have to find the value of sample mean;</u>

So, <em><u>z-score</u></em> formula is given by ;

                  z-score = \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } = \frac{\bar X-70}{\frac{8}{\sqrt{4} } }

                      2.00 =  \frac{\bar X-70}{\frac{8}{\sqrt{4} } }

                      2.00 =  \frac{\bar X-70}{4 } }

                     \bar X = 70+(2 \times 4)

                     \bar X = 70 + 8 = 78

<em>Therefore, the value of the sample mean is 78.</em>

3 0
3 years ago
Please do not skip it’s 9th grade math Please help me! thank you in advance:)
Gemiola [76]

Answer:

I cant read It very Well, but I'm Pretty Shure that it is C

Step-by-step explanation:

7 0
2 years ago
-4x^2+2x-5(1+x) what expression is equivalent to the given expression
Tcecarenko [31]

Answer:

− 4 x ^2 − 3 x − 5

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Reyansh filled a 500-milliliter container with clean water. He then drank 35 percent of the water in the container. How many mil
    11·2 answers
  • The sum of two confescutive integers is at least 46. What is the least possibly pair of integers?
    12·1 answer
  • ashley recieved a 40% discount on the purchase of a 250$ tv. what was the amount of the discount that ashley recievd
    6·1 answer
  • -5(-2) =<br><br> Need help ASAP (too lazy to actually do the work )
    5·2 answers
  • There is a 5% per year decline in water in the following reservoir. if the reservoir had 2000 gallons of water in year 2001, how
    10·1 answer
  • 3w = 30 .... What is the solution of this equation?
    10·2 answers
  • Please I truly need help I’m not that good with math
    9·1 answer
  • What is the solution of the system? Use elimination.<br> 5x + 6y = 17<br> −10x − 9y = −43
    8·1 answer
  • Which of the expressions below is equal to 10x+30? Select all that apply.
    6·1 answer
  • Match its group with its percentage or mean Using
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!