Answer:
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Step-by-step explanation:
The answer is they cannot be divided
Answer:
58.74 cubic meters
Step-by-step explanation:
The function is actually 
Here x is the number of days and the corresponding value of "f(x)" would be the water REMAINING after x days.
Since, we want to figure out how much water (from 60 m^3) is remaining after 7 days, we simply have to plug in x = 7 into the function. Whatever number we get, is the AMOUNT OF WATER REMAINING AFTER 7 DAYS.
So,

Thus, the amount of water remaining in the pool after 7 days is 58.74 cubic meters
Answer: 3 : 1
Step-by-step explanation:
We know that the ratio of A to B is given by :-
or A : B .
Given : Number of students having brown hair = 15
Number of students having black hair = 5
Then , the ratio of students with brown hair to students with black hair will be :-

Hence, the ratio of students with brown hair to students with black hair = 3 : 1.
Answer:
5x^2 + 3x + 4
Step-by-step explanation:
Rewrite (2x^2+x+3)+(3x^2+2x+1) vertically, and then combine like terms:
(2x^2+ x +3)
+(3x^2+2x + 1)
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5x^2 + 3x + 4