Answer:
the answer is 20/72 = x/480 . this is because u have to add the numbers for the first sample to find the sample size and then make a ratio to determine if the sample size increases to 480 .
Answer:
down
Step-by-step explanation:
Assuming this is for a parabola
a>0 the graph opens up
a < 0 the graph opens down
( negative is a frown)
<span>Answer:
When two angles add up to 90</span>°, it is complementary.
Linear pair<span> of angles are formed when two lines intersect.
</span><span>Vertical is each pairs of opposite angles made by two intersecting lines.
</span>Adjacent angles are angles that are next to or neighboring each other.
Hope this helps!
Answer:
A. Different volumes of water are moved different distances.
Step-by-step explanation:
Integration is used to find work required to pump water out of a tank because different volumes of water are moved different distances and to sum it all we the tool required is integration. Moreover, work done is a path function or an inexact differential. It does depend upon the path followed by the process.
hence the correct answer is A.
