Answer:
r = 8 units
Step-by-step explanation:
The circumference is calculated using . Substitute C = 50.24 units. Solve for the radius.
Answer:
-1
Step-by-step explanation:
When a line is perpendicular to another line, it means that the line is going through the other line. So that means they have the opposite slope or the reciprocal of the first line and you change the sign to become opposite.
y=x-4 ---> find reciprocal of x
y=-1x-4
slope= -1
Vary Directly: y = k*x
Vary Inversely: y = k/x
Because x and y vary directly, our equation will look like the first one.
y = k*x
With the inputted values:
-16 = k * 4
Now, to find k, isolate the variable
k = -16/4 = -4
Your final equation will then look like this:
y = -4 * x
23.
store price = 14 + 0.5(14)
store price = 21
customer price = 21 + 0.08(21)
customer price = 21 + 1.68
customer price = $22.68
24.
formula: A = P(1 + rt)
A = 140(1 + (0.03)(2))
A = 140(1.06)
A = 148.40
interest = 148.40 = 140
interest = $8.40
Hope this helps!! :)