mean = sum/n
mean = (5 + 7 + 7 + 9 + 12 + 16 + 21)/7
mean = 77/7
mean = 11
Answer:
8
Step-by-step explanation:
5 + 3 = 8
<em>Hope that helps! </em>
<em>-Sabrina</em>
T= number of minutes
Multiply 5 liters by number of minutes (t), then add the 17 liters already in the tank. This totals 72 liters or more.
17 + 5t ≥ 72
subtract 17 from both sides
5t ≥ 55
divide both sides by 5
t ≥ 11 minutes
ANSWER: Laura could add water for 11 minutes to be sure the tank has 72 liters or more.
Hope this helps! :)
B because if you take it it would be b
Answer:
Step-by-step explanation:
The given complex number is
The polar form of this complex number is;
, where
and
This implies that;
to the nearest degree.
Hence the polar form is
