Answer:
B: A systematic random sample
Step-by-step explanation:
Systematic sampling is a type of probability sampling in which members of a larger population are chosen at random from a larger population but at a fixed, periodic interval. This interval, also known as the sampling interval, is calculated by dividing the population size by the sample size desired. Despite the fact that the sample population is chosen in advance, systematic sampling is still considered random if the periodic interval is set in advance and the starting point is chosen at random.
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Answer:
The required expression is 
Step-by-step explanation:
Consider the provided information.
A tissue can be 0.000075 meters thick and we need to represent it into scientific notation.
Steps to write a number in scientific notation.
- Move the decimal place to the right so that the new number from 1 up to 10.
- Determine the exponent, the exponent is the number of times you moved the decimal.
Now, consider the number 0.000075
Move the decimal point to 5 place right so that the new number from 1 up to 10.
Now, put the exponent the number of times you moved decimal. 
Hence, the required expression is 
Answer:
294
Step-by-step explanation:
SA = 6
= 6 (
)
294 = 6 (49)
Answer:
Step-by-step explanation:
Given:
E is the midpoint of segment AC.
AE ≅ EC
∠BAE ≅ ∠ECD
To prove:
ΔAEB ≅ ΔCED
Statements Reasons
1). AE ≅ EC 1). Given
2). ∠BAE ≅ ∠ECD 2). Given
3). ∠AEB ≅ ∠CED 3). Vertically opposite angles theorem
4). ΔAEB ≅ ΔCED 4). By ASA postulate of congruence
Value of 
Solution set is 
Step-by-step explanation:
We need to solve the following system of equations:

We can solve this using Substitution.
Isolate x in 

Putting value of x in equation(2)

Putting value of y=1/5 in 

So, value of 
Solution set is 
Keywords: System of linear Equations
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