Answer:
y = -3/2x + 3
Step-by-step explanation:
We can get 2 points from the graph
(0,3)
(2,0)
from (0,3) we know that the b in the equation is 3
now to calculate m or slope we use
= -3/2
so we plug our m and b into y = mx + b and get
y = -3/2x + 3
Answer:
Step-by-step explanation:
2 more than 3 time mean 3n+2
"is atleast 8" means it can be 8 or more so c. is right answer
Answer:
revolutions per minute for 16 inches is 946 / minute
revolutions per minute for 14 inches is 1081 / minute
Step-by-step explanation:
Given data
radius = 16 inch
speed = 90 mph = 90/60 = 1.5 miles/minute = 1.5 × 5280 feet /12 inches = 95040 inches /minute
radius 2 = 14 inches
to find out
revolutions per minute
solution
first we calculate the circumference of the wheel i.e. 2××radius
circumference = 2××16
circumference = 32
we know that revolution is speed / circumference
revolution = 95040/32
revolution = 945.38 / minute
we have given radius 14 inches than revolution will be i.e.
revolution = speed / circumference
circumference = 2××14
circumference = 28
revolution = 95040/ 28
revolution = 1080.43 / minute