Given:
(-10, 2) & (-5, -1)
Add x values separately; add y values separately:
(-15, 1)
Divide x and y values by 2:
(-7.5, 0.5); midpont
It is also called as Random Sample experiment.
<h3>What is random sample experiment?</h3>
- Random assignment is a technique used in experimental research to divide individuals from your sample into several groups using randomness.
- With this approach, each sample participant has a known or equal chance of being assigned to either the experimental group or the control group.
- In an experiment, random assignment and random selection are both possible.
- Imagine that 500 people are randomly chosen from a population to take part in your study.
- A subset of a statistical population called a simple random sample is one in which each member has an equal chance of being chosen. A straightforward random sample is intended to be an objective depiction of a group.
Hence, it is an random experiment.
learn more about random experiment.
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Given: Different equations
To Determine: Which would be best solved using difference of two squares
Solution
The factorization of a difference of two squares is given below
Let us examine each of the given equation
From the above,
The two equation above can be solved by difference of two square, but the equation below is the easiest solved using differnce of two square
x² - 25 = 0
Answer:
9:18
Step-by-step explanation:
1:2 means that you have to multiply the first number by 2 to get the second number. Therefore, you have to multiply 9 by 2, which is equal to 18. Therefore, it would be 9:18.
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Answer:
x = -2 and y = 3
Step-by-step explanation:
It is given that,
4x + 5y = 7 -----(1)
3x – 2y = –12 ----(2)
<u>To find the value of x and y</u>
eq(1) * 3 ⇒
12x + 15y = 21 ----(3)
eq(2) * 4 ⇒
12x - 8y = -48 ---(4)
eq(3) - eq(4) ⇒
12x + 15y = 21 ----(3)
<u>12x - 8y = -48 </u> ---(4)
0 + 23y = 69
y = 69/23 = 3
Substitute the value of y in eq(1)
4x + 5y = 7 ----(1)
4x + 5*3 = 7
4x = 7 - 15 = -8
x = -8/4 = -2
Therefore x = -2 and y = 3
