exam Maths Puzzle Numerical Ability

Find the domain of the following:
f(t)=4.5e^t
Answer:
Explain how you obtained your answer here:

g(x)=log(x+3)
Answer:
Show your work:

g(x)=2^x
Answer:
Explain how you

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exam Other Question

The equation of Circle P is X squared + Y squared - 6x + 4y= 21, and the equation of circle Q is X squared + y squared - 8x + 10y = 11. How do I find the difference between the centers of these circles? using addition, subtraction, multiplication,division, parenthesis make an expression using 1, 3, 4, 6 once and the total should be 24.