Answer:
Step-by-step explanation:
The slope of a line that is perpendicular to another will have an opposite-reciprocal slope. So, if the slope was -2, then the perpendicular slope would be .
This is written in slope-intercept form:
m is the slope and b is the y-intercept. Find the opposite-reciprocal of the slope, -5:
Now we need to find the y-intercept. For this, substitute the given points for its appropriate value:
Solve for b:
Simplify multiplication:
Insert:
Subtract b from both sides:
Subtract 3 from both sides:
Simplify subtraction:
Insert:
Multiply both sides by - 1 to simplify b (it can be seen as -1b):
Insert:
:Done
The longer the bridge the more weak it will be. The shorter the bridge the stronger it will be.
Answer:
4 miles.
Step-by-step explanation:
We know that Molly travels 20 miles in 5 hours, so we can divide by 5 to find out how many miles she travels in 1.
20/5 = 4/1
Therefore, Molly travels 4 miles per hour.
Answer:
B
Step-by-step explanation:
it is the B because that's 2/5