No it is not, because the value 3 in the domain is repeating, therefore it is not a function
Answer:
See if this helps
Step-by-step explanation:
Answer:
Step-by-step explanation:
Time taken for task 1:
Distance= 750m= 0.75 km
Speed= 10 km/hr
Time taken1= S (distance)/ V (speed)= 0.75/10= 0.075 hr= 4 mins and 30 sec
Time taken for task 2:
t2=S/V= 20/85= 0.24 hr= 14 mins and 24 sec
Time taken for task 3:
t3= S/V = 5/14= 0.36 hr= 21 mins and 36 sec
Total time took:
T1 +T2+T3= 40 mins and 30 second (approximately)
Answer: x1=1 x2=-2 and x3=2
Step-by-step explanation:
1st x1=1 is 1 of the roots , so
F(1)=1-1-4+4=0 - true
So lets divide x^3-x^2-4x+4 by (x-x1), i.e (x^3-x^2-4x+4) /(x-1)=(x^2-4)
x^2-4 can be factorized as (x-2)*(x+2)
So x^3-x^2-4x+4=(x-1)*(x^2-4)=(x-1)(x-2)*(x+2)
So there are 3 dofferent roots:
x1=1 x2=-2 and x3=2
Question:
The quantities x and y are proportional.
Find the constant of proportionality (r)
Answer:
Step-by-step explanation:
Given
Required
Determine the constant of proportionality (r)
Constant of proportionality (r) is calculated as
When
Substitute these values in the given formula
Convert both fractions to improper fractions
Multiply both sides by 
Reorder
Divide the numerator and denominator by 3
Convert to mixed fraction
<em>Hence, the constant of proportionality is </em>
<em></em>
