( 3 + 2i ) + ( 6 - 8i )
1 answer:
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A: To find the rate in feet per minute, we can use the information given.
Every two minutes, the submarine dives 300 feet. So
.
In order to confirm that our rate is correct, we can use the second set of information given.
=
.
Since we know that the rate is 150 feet per minute, we can multiply it by any number of minutes and get the answer of how deep the submarine is. We can use a variable x to represent the number of minutes and y to represent the depth in feet.
There's our equation.
B: It would be more reasonable to use an equation with the rate feet per minute because it is more accurate since the time interval isn't too big.
Every two minutes, the submarine dives 300 feet. So
In order to confirm that our rate is correct, we can use the second set of information given.
Since we know that the rate is 150 feet per minute, we can multiply it by any number of minutes and get the answer of how deep the submarine is. We can use a variable x to represent the number of minutes and y to represent the depth in feet.
There's our equation.
B: It would be more reasonable to use an equation with the rate feet per minute because it is more accurate since the time interval isn't too big.
Answer:
Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.
Step-by-step explanation:
We are given the following in the equation:
A simple linear regression analysis was conducted to predict the Exam 3 score of students in STA 2023 based on their Exam 1 score.
Thus, Exam 3 score becomes the dependent variable and exam 1 score is the independent variable.
The regression equation is given by:
Comparing the equation to a linear equation:
m = 0.4845
c = 50.57
Where m is the slope and tells the rate of change and c is the y intercept that is the value of y when x is 0.
When, there is a increase in x, we can write:
Thus, the slope of equation can be interpreted as:
Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.