As you can see in the picture, this is 6-8-10 right triangle.
One of angles is 90° so you can find others

8/6 = 4/3
6/8= 3/4
tan-1(4/3) = 36.9 °
tan-1(3/4) = 53.1 °
tan<R= 53.1 °
Hope this helps ^-^
The answer for 15 is low pollution
Answer:
10s-14
Step-by-step explanation:
Perimeter of rectangle = 2s+2(4s-7)
= 2s+8s-14
= 10s-14
Answer:
y = 9x + 5
With y in dollars and x in hours.
Step-by-step explanation:
Bike-a-Rama charges $9 hourly for each of their bikes. And they have a fixed maintenance fee of $5.
The total cost of renting a bike, just like almost every business venture, would be given as
Total Cost = (Fixed Cost) + (Variable Cost)
Total Cost = y (the total absolute cost of renting a bike)
Fixed Cost = The compulsory maintenance cost for everyone that wants to rent = $5
Variable Cost = (Rent Rate given per hour) × (number of hours the bike is rented)
Rent rate given per hour = $9 per hour
Number of hours the Nike is rented = x
Variable Cost = $9x
Total Cost = y = 5 + 9x
So, y = $(9x + 5)
Hope this Helps!!!