Answer:
D
Step-by-step explanation:
Each x value can have only one y value. If this is not the case it is not a function.
Can I get brainliest please
Answer:
Randomization removes lurking variables and biases.
Step-by-step explanation:
In case of an experimental design the groups are divided randomly.
Randomization is important so that there are no bias present in the study and to control any lurking variables. The controlling of the lurking variables provides an accurate result.
Lurking variables have a significant effect on the response variable. Presence of lurking variables can indicate a strong relation between variables or conceal any true relation between the variables.
Randomization thus gets rid of lurking variables and biases.
Also if randomization is used then each of the groups are similar in every way other than the fact that each group is provided with different treatment.
Answer:
y=-1/2x+6
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let the number be 'x'
Reciprocal = 
Cross multiply
(x² + 1) *2 = 5*x
2x² + 2 = 5x
2x² - 5x + 2 =0
Factorize the equation,
Sum = -5
Product = 4
Factors = -1 , -4
2x² - x - 4x + 2 = 0
x(2x - 1) - 2(2x - 1) = 0
(2x -1 )(x - 2) = 0
2x - 1 = 0 ; x -2 = 0
2x =1 ; x = 2
x = 1/2
Number = 2 , and its reciprocal = 1/2
Answer : 1.96 was the fare in 1979.
Explanation :
Bus fare in Atlanta in 1999 =4.70
Bus fare in Atlanta in 1979 is given by
∴ 1.96 was the fare in 1979.
