Answer: (A)
(B)
(C)
Step-by-step explanation:
- Null hypothesis
: It is a statement showing population parameters as per the objective of the study. It generally takes "≤,≥,=" signs. - Alternative hypothesis
: It is also a statement describing population parameters as per the objective of the study. It generally takes ">, <, ≠" signs.
(A) Objective: Scores in second-year calculus are scaled so the average each year is equivalent to a 75 or not.
(B) Objective: The mean time is 24 seconds or more for one particular maze.
(C) Objective: The average square footage of one-bedroom apartments in a new student-housing development is advertised to be 850 square feet or smaller.
Answer:
50 mph
Step-by-step explanation:
The total distance is 350 miles.
The total time is 3 hr + (240 mi / 60 mph) = 7 hr.
The average speed is 350 mi / 7 hr = 50 mph.
Answer:
I don't think the answer exist
Step-by-step explanation:
for y=6x
when y=0, x=0 and when x=0, y=0
hence, (x,y)=(0,0)
for y=x+6
when y=0, x+6=0, x=-6 and when x=0, y=6
hence (x,y) = (-6,6)
for y=x^2+6
when x=0, y=6 and when y=0,
x^2+6=0
subtracting 6 from both sides
x^2=-6
take the square root of both sides and get
x=+ or -sqrt(-6)= + or - (2.45i)
i.e. x=+2.45i or x=-2.45i these are complex roots anyway, and its out of point.
for y=2x+6
when x=0, y=6 and when y=0,
2x+6=0,
2x=-6,
x=-3
the coordinates give (x,y)=(-3,6)
conclude....
Rectangle : 4 sides
In pairs are the same size.
174 ÷ 2= 87
87-9= 78
78 ÷ 2= 39
174-78= 96
96 ÷ 2= 48
Answer :
39 and 48
4^2 = 16
16 x 2 = 32
32, Hope this helps!
