Answer:
pick two points on the line and divide the rise by the run
Step-by-step explanation:
ANSWER: 140 drinks
EXPLANATION: 420=3x
(x being the number of large drinks sold)
Answer:
C = 97.20
Step-by-step explanation:
Given that C varies as r² then the equation relating them is
C = kr² ← k is the constant of variation
To find k use the condition C = 202.80 when r = 2.6
k = = = 30
C = 30r² ← equation of variation
When r = 1.8, then
C = 30 × 1.8² = 97.20
Answer:
108
Step-by-step explanation:
Limit as x approaches 9 of x^2 -81/sqrt of x - 3
First substitute x into the expression
= 9²-81/√9 - 3
= 81-81/3-3
= 0/0 (indeterminate)
Apply l'hospital rule
= lim x -> 9 d/dx(x²-81)/√x - 3
= lim x -> 9 2x/1/2√x
Substitute x = 9
= 2(9)/1/2√9
=18/1/(2(3)
=18 × 6/1
= 108
Hence the limit of the function is 108
1.) 1:4
4.) 2:3
5.) 7:9
6.) 1:7