Answer:
y = 2/7x - 40/7
Step-by-step explanation:
y2 - y1 / x2 - x1
-8 - (-4) / -8 - 6
-4/-14
= 2/7
y = 2/7x + b
-4 = 2/7(6) + b
-4 = 12/7 + b
-40/7
Answer:
-30 is a debt of 30$
+30 is 30 meters above sea level
+6 is 6 units to the right of 0 on the number line
-15 is 15 meters below sea level
+15 is a profit of 15$
Step-by-step explanation:
above sea level means positive(+)
below sea level means negative(-)
profit means you gained (+)
debt means to take(-)
Answer: Daniel has $22 in his savings account balance.
Step-by-step explanation:
Let Daniel's savings account balance be x
and Henry's savings account balance be y, then as given Daniel's savings account balnce is 20 times that of Henry's, We get 
...........(1)
And also total amount of both savings account is $462 so we get 
......(2)
Now by substituting values of x from (1) into (2) we get,
And 
So, Daniel's savings account balance is $440
and Henry's savings account balance is $22
Answer:
"Teens and Distracted Driving: Texting, Talking and Other Uses of the Cell Phone Behind the Wheel"
a. The inference made involves estimation. The question provided that the statements were made on the basis of the resulting data and not on the basis of some hypothesis testing.
This implies that some statistics were calculated from sample data to approximate the population parameter, as shown in the statements. The statements were not an attempt to establish the statistical significance of some claims.
b. The population of interest is American teenagers between 12-17.
Step-by-step explanation:
An inference from data is a statistical estimation by which some statistics are calculated based on the sample data of 800 teens between the ages of 12 and 17. The statistics serve as an approximation to the population parameter.
Inference based on hypothesis testing establishes if a claim has statistical significance by providing statistical evidence in favor of the claim or against it.
Answer: x=
1
/4
y+
9
/4
Step-by-step explanation:
