Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
we know that
m∠LOM+m∠MON=m∠LON ----> by angle addition postulate
we have
m∠LOM=2x°
m∠MON=x°
m∠LON=90° ----> is a right angle
substitute the values

solve for x


Answer:
3
Step-by-step explanation:
6 have visited a zoo.
6 have visited a factory.
3 visited both.
Of the 6 who visited a zoo, 3 also visited a factory.
Of the 6 who visited a factory, 3 also visited a zoo.
Here is the list of students:
3 visited a zoo but not a factory.
3 visited a factory but not a zoo.
3 visited both.
Answer: 3
Answer:
x = 2
y = 4
Step-by-step explanation:
Let's start with the 7 in the middle. Subtract the 1 on its upper left to get 6.
Add the 3 on its lower left to get 10.
so, 3 - x = 1. x = 2
17 - y = 13. y = 4
-3=7x-10. -7x=3-10. X=1. You can check the answer by plugging in the numbers.
Answer:
The correct option is stratified sampling
Step-by-step explanation:
Stratified sampling is a sampling techniques that divide a population into strata which is homogeneous and then simple random sampling (SRS) is then applied in each stratum to get the required samples.
Looking at the question, the population has been divided into strata I.e those majoring in communication, those majoring in business, and those majoring in history, then simple random sampling is then applied to pick the required samples.