Answer:
Nathan's because his sample was more random
Step-by-step explanation:
Nathan's survey could be described as a Systematic random sampling technique whereby every 5th observation taken as a sample from the population. With these technique we have a more random observation than with.
Answer:
1. 1.5 inches per minute
2. 90 inches per hour
Step-by-step explanation:
speed =
1. total distance covered = +
=
=
= 4 inches
Total time taken = +
=
=
= 3 minutes
The ants average speed =
= 1
= 1.5
The ants speed is 1 inches per minute.
2. Since;
60 minutes = 1 hour
3 minutes = x hours
x =
=
= 0.05 hours
Speed =
= 90 inches per hour
The red ants speed is 90 inches per hour.
A, A and B. Because the first one says that ''t is less than or equal to 50 '' so it can not be at least 50 ( B ).
The second one says ''x is greater than 4'' so x can not be at most 4 because the inequality is strict, there is no ''or equal to'' .
Hope this helped
<span>y=3x4 -8x3 + 4x2 - x -5 is an even function. Highest power is x^4 (not x4).
As x increases in the + direction or decreases in the - direction, 3x^4 will increase in Q I and Q II respectively. Not a parabola, but looks like one, opening up.
</span>
Answer:
D(1, –5), (7, 1), (–11, 7)
Step-by-step explanation:
The given inequalities are:
y + x ≥ –4
y ≥ x – 6
3y + x ≤ 10
We graph the inequalities as shown in the attachment.
The coordinates of the vertices of the figure formed by the given system of inequalities are:
(1, –5), (7, 1), (–11, 7)
The correct choice is D.