Answer:
Step-by-step explanation:
Look at the picture.
Use the Pythagorean theorem:
We have:
Substitute:
<em>multiply both sides by 4</em>
<em>subtract 81 from both sides</em>
<em>divide both sides by 4</em>
221.57
Explanation:
To round to the nearest tenth you would would look at the hundredths place. If it is higher than 5 you round the number in the tenth place up if it is lower than 5 you keep it the number in the tenth place the same. In this case you have 2 which is lower than 5 so you keep the 7 the same and bring everything else down.
Since the lines are parallel and you know the slope of
is -2, you know the slope of line
will also be -2. You can see on the coordinate grid that line
crosses the y-axis at -1. When you piece all of these facts together into slope-intercept form you get
= -2x - 1.
Answer/step-by-step explanation:
The graph of f(x) above is said to be the quantity of liquid a cylinder holds when poured into it at a given time, x.
This means the quantity of the liquid poured in the cylinder is a function of time.
f(x) values (quantity of liquid) are plotted on the y-axis, while x values (time) are plotted on the x-axis.
f(3) is the value at the y-axis when x = 3. Thus, when x = 3, y = 6.
Therefore, the value of f(3) = 6
f(3) = 6, represents the quantity of liquid poured in the cylinder at 3 seconds.
