The solution is x = 6
Step-by-step explanation:
Let us revise some rules of the exponents
- If
, then n = m 
∵ 
∵ 9 = 3 × 3
∴ 9 = 3²
- Substitute 9 by 3² in the equation above
∴ 
- Use the second rule above for the left hand side
∵ 
∴ 
∴ 
- By using the first rule above
∴ 2x + 30 = 7x
- Subtract 2x from both sides
∴ 30 = 5x
- Divide both sides by 5
∴ 6 = x
The solution is x = 6
Learn more:
You can learn more about solving equations in brainly.com/question/7153188
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Yes because each x only has one y output
Answer:
the domain is {7,-4,1,4,}
the range is {1,-5,2,-7}
Step-by-step explanation:
You need to use the steps of a^2+b^2=c^2
A and B are the legs. C is the hypotenuse.
If we follow that through, we find the answer is 20.
95,000 / 125,000 = 0.76
which means she was ranked in the upper quartile or the 76th percentile