Answer:
-3y/5
Step-by-step explanation:
3/5y+(-6/5y)=
Since the denominator is the same, we can add the numerators
3y - 6y
----------------
5
-3y/5
Answer:
the 1st one
Step-by-step explanation:
Answer:
17.03 meters
Step-by-step explanation:
The circumference of a circle:
where r is the radius and d is the diameter.
Given the diameter here, all you need to do is multiply it by pi:
Rounded to 2 decimal places, you get 17.03 meters.
Old bell: once every 7 minutes
Small bell: once every 3 minutes.
Large bell: 4 minutes
The first time they will ring together is at the lowest common multiple of 7,3 and 4.
We can use the points given to solve for the slope.
Slope formula: y2-y1/x2-x1
7-3/4-1
4/3
Find the y-intercept.
y = mx + b
3 = 4/3(1) + b
3 = 4/3 + b
5/3 = b
The slope of a perpendicular line is the opposite and reciprocal.
4/3 -> -3/4
Write the new equation.
y = -3/4x + 5/3
Best of Luck!