Answer:
The solutions of the equation x^2-1=-x^2+7 are (-2,3) and (2,3)
Step-by-step explanation:
Please, see the attached file.
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Answer:
plz make it brainlisted
Step-by-step explanation:
Since the total is 300 and the ratio is 4:1,
Let us suppose the number of adults be 4x and children be x;
According to the question,
4x+x=300
or,5x=300
or,x=(300/5)
or,x=60
So, 60 students attended the show.
Answer:
5 + 2
Step-by-step explanation:
We have to rewrite the given statement in addition form.
The integers have property of:
Negative(-) Negative(-) = Positive(+)
Positive(+) Positive(+) = Positive(+)
Positive(+) Negative(-) = Negative(-)
Negative(-) Positive(+) = Negative(-)
The given statement is:
5-(-2)
Since we have two negative together, it is converted into a positive.
Thus, the given statement can be written in positive form as
5 + 2
12 bottles will be needed for a group that size
Step-by-step explanation:
Total = n, Blue = 1 Red = n-1
(a)The prob. that two bags are blue and red each = prob. of blue and the prob. of red =1/n × n-1/n =n-1/n^2
(b)