Answer: First Option
The slope is −0.4. Starting at 3.8, the GPA will decrease by 0.4 for every text sent in class.
Step-by-step explanation:
The equation of a line has the following form

Where m is the slope of the line and b is the intercept with the axis of the y
In this case, the equation is:

Observe that

So if x represents the number of texts sent during classes, this means that 
When x increases by one unit then y decreases -0.4. For example when
then 
Then the greatest value it can take the GPA is 3.8. Therefore we can say that the function starts at y = 3.8.
The answer is the first option
Answer:
The perimeter is 89 7/8 or 89.875
Step-by-step explanation:
You can rewrite each fraction in decimal form
20 9/16 is the same as 20.5625, 23 3/8 is 23.375, 24 5/8 is 24.625, and 21 5/16 as 21.3125. Next, you add them. 20.5625+23.375+24.625+21.3125=89.875
Answer:
13/15
Step-by-step explanation:
Answer:
B. {1, -4}
Step-by-step explanation:
Just rotate the screen and look at the position.
Answer:
12.2 feet
Step-by-step explanation:
The key to this problem is trigonometry.
Imagine a right triangle. With a height, 10 ft (representing the tree's height), and a base of 7 ft (representing the horizontal distance to the worm).
Now the hypoteneuse length, or otherwise the distance from the worm is unknown.
So this is where we can use the pythagorean theorem.

here is the hypoteneuse length, and
and
are the other lengths of the triangle.
Since we know a and b we can solve for c.
But first we will square root both sides of the equation to get
and not
.

Now just plug in our values for a and b respectively. (It doesn't matter what number replaces a or b, just make sure you are replacing a and b with the 2 known values) Calculate.

Round to the nearest tenth.
feet