Answer:
Length of AB = 4.4721
Equation of line BC: y = -2x + 6
Step-by-step explanation:
To find the length of the line AB, we just need to find the distance between the points A and B.
We can find distance with the equation:



To find the equation of the line BC, first let's find the slope of the line AB.
This slope is given by:


The line AB is perpendicular to the line BC (because mB = 90°), so the slope of line BC is:

so the line BC is:

To find the value of b, we can use the point B (1,4):


So we have:

48/5 or 9 3/5
12.8/1 x 3/4 = 38.4/4
Or multiply 12.8/1 by 10 ==> 128/10
128/10 x 3/4 = 384/40
Hope this helps!
Answer: 4 hours
Step-by-step explanation:
4 Hours
Explanation:
Make h = hours
You add the $55 extra cost for the assistant
$125h + $55 = $555
Use additive inverse to isolate the term with the variable
$125h + $55 - $55 = $555 - $55
Use multiplicative inverse to isolate the variable
= 
Hours would be: 4 Hours.
I hope this helps! Please mark brainliest.
Divide the total number of students by the number of classes into which they're, well, divided.
144 students/6 classes
This comes out to be 24, so you have
24 students/1 class, or 24 students per class
The formula of a volume of a cylinder:

The formula of a volume of a cone:

Therefore, if a cone has the same radius and height like a cylinder, then the volume of a cone is three times smaller than the volume of a cylinder.
Therefore we have:

The formula of a volume of a sphere:

If a cone has that same lengths of a radius and a height, then the formula of a volume is:

If a cone and a sphere have the same radius, then the volume of a sphere is four times greater than a volume of a cone.
Therefore we have:
