Answer:
The answer to #7 is -4
Step-by-step explanation:
-2(x-3y)
-2( (-4) - 3(-2) )
-2 (-4+6)
-2(2)
-4
No, there can not be negative amplitude because it is just the distance between the max and the midline or the minimum and the midline.
I see where you might be confused because for instance in the trig equation:
y = -3 sin (.5(x-

/2)) -1, there is a negative in front of the amplitude. However, when finding the amplitude, you take the absolute value of a.
Answer:
Divide 120 by 100 (Because 120 is 100% of the animals). You get 1.2. Multiply 20% by 1.2 and get 24.
Step-by-step explanation:
<u><em>If helpful, please mark as brainliest! =)</em></u>
Total mass of the filled aquarium = 3*3 * 62 = 1674 pounds
As the table can only support 200 lbs the aquarium should not be put on the table.
(b) No the deisity of the water is a constant