In mathematical operations with significant figures the answer must r<span>eflects the reliability of the least precise number. 225 has three significant figures, whereas 0.015 has two -leading zeroes are not significant figures, so our answer must have two significant figures to reflect the reliability of the number 0.015, which has two significant figures.
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We can conclude that <span> the number representing the amount of calcium in the liquid will have
two significant figures.</span>
The answer is x=1.76 or 2
Step-by-step explanation:
first solve for h



Answer:
A Exactly one solution
Step-by-step explanation:

Putting y=0 at second equation, we have

The unique solution is 