Answer:
C
Step-by-step explanation:
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The water should fill the aquarium to 1.5 feet
Solution:
Given that the directions for the aquarium say that it should be filled with 9 cubic feet of water.
This means volume of aquarium is 9 cubic feet
Given that aquarium is 2 feet wide and 3 feet long
To find: Height of aquarium
Since a aquarium is in shape of cuboid, we can use the volume of cuboid formula
<em><u>The volume of cuboid is given as:</u></em>
volume of cuboid = 
Where "l" is the length
w is the width
"h" is the height
Substituting the values, we get,

Thus the height of aquarium is 1.5 feet
it is B The temperature started at 78°F and increased by 6°F Then the temperature increased by 5°F
Answer:
80
Step-by-step explanation:
x*.25=20
x=20/.25
x=80
Answer:

Step-by-step explanation:
For easy calculations let's use the supplementary angles:






Now lets calculate the magnitude of the vector C:

where:


Finally:
