Answer:yes you did it pefect ly fine but fix number 6 make sure it's correct
Step-by-step explanation:
Answer:
300
Step-by-step explanation:
2000-500= 1500
1500/5= 300
Answer:
y = (5x – 9) ÷ (–4)
Step-by-step explanation:
3 − 4y = 5x − 6
–3 –3
–4y = 5x – 9
÷(–4) ÷(–4)
y = (5x – 9) ÷ (–4)
Answer: simple random sampling
Step-by-step explanation:
In statistics, when a subset of individuals known as sample chosen from a population by a random selection of individuals such that the chances of selecting each individual is same, then the sampling method is called simple random sampling method.
Given: To assess the learning outcomes of a Statistic course, 5 students are chosen at random from each of the 30 Statistics classes.
here chances for selectin students is same.
The sampling method used here : " simple random sampling "
Answer:
x =5 ±sqrt( 31)
Step-by-step explanation:
x² + 10x = 6
b = 10
Take b/2 and square it
(10/2) = 5 5^2 = 25
Add 25 to each side
x² + 10x+25 = 6+25
The left side will be (x+b/2)^2
(x+5)^2 = 31
Take the square root of each side
sqrt((x+5)^2) = ±sqrt( 31)
x+5 = ±sqrt( 31)
Subtract 5 from each side
x+5-5 = -5 ±sqrt( 31)
x =5 ±sqrt( 31)
