What's the point here? Why would you remove one of the ordered pairs?
The only thing I see here that hints at an answer is that -1 is the first term of both (-1,1) and -1,0). If we got rid of one of these, then the relationship could be a function; otherwise it is not a function. Why? Because in the case of a function, all first elements of the ordered pairs are unique (different from all the other first elements).
Answer:
3.85 (rounded to 4 cars)
Step-by-step explanation:
Let X be the discrete random variable the number of vehicles changing lanes
X~B(7, 0.55)
The expected value is found by:
E(X) = 7 × 0.55
E(X) = 3.85
Answer: y= 10cos(pi/5(x-4))+5
Step-by-step explanation:
Answer:
A1) 125
A2) 47.5%
B) 30
Step-by-step explanation:
Remember 'of' in this sentence means times(*). % shows a certain number/100.
a1) 48% 'of' what number is 60?
(let unknown number be x)
48/100 *x=60
Solve the equation, and the answer is x=125
a2) what percentage 'of' 120 is 57?
(let the unknown percentage be x)
(x/100)*120=57
x=47.5%
b) 24 students= 80% of the total number of students
1%=24/80
100% of the total number of students=30
So, there are total of 30 students
Answer:
the third one
Step-by-step explanation:
use quadratic equation