Answer:
x=3
Step-by-step explanation:
2x+2=8
2x=6
x=3
Answer:
-3
Step-by-step explanation:
Given, f(x)=-4log2(x+3)-6
So, for domain of f(x) ,we have to find the domain of log2(x+3) as all other things are just numbers which do not affect the domain.
For domain of f(x), 2(x+3) > 0
Thus, x + 3 > 0
x > -3.
So, all real numbers greater than -3 are in the domain of f(x).
Answer:
the answer is A
Step-by-step explanation:
350×3% =10.5
ans×5=21
Answer: a) ![3\times50=5 \times x](https://tex.z-dn.net/?f=3%5Ctimes50%3D5%20%5Ctimes%20x)
b) 30
Step-by-step explanation:
Given: The number of new songs that a rock group needs to stay at the top each year is inversely proportional to the year and that the group has been in the industry.
Let x be the number of songs will be needed after 5 years.
Now the inverse variation equation for the given question will be:-
![3\times50=5 \times x\\\\\Rightarrow x=\dfrac{3\times50}{5}\\\\\Rightarrow\ x=30](https://tex.z-dn.net/?f=3%5Ctimes50%3D5%20%5Ctimes%20x%5C%5C%5C%5C%5CRightarrow%20x%3D%5Cdfrac%7B3%5Ctimes50%7D%7B5%7D%5C%5C%5C%5C%5CRightarrow%5C%20x%3D30)
Hence , the number songs will be needed after 5 years = 30