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Significant Figures and Rounding
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Flashcards
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Terms in this set (16)
non zero digits
significant
zeros between non-zero digits
(also, what are these known as)
significant
captive zeros
placeholding zeros on the left of the first non-zero digit
not significant
trailing zeros following a decimal point
significant
trailing zeros in a number without a decimal point
not significant
significant figures definition
the digits we are certain of plus one that is uncertain
rule for significant figures in multiplication and division
the answer contains the same number of significant figures as in the measurement with the fewest significant figures
rule for significant figures in addition and subtraction
the answer has the same number of decimal places as there are in the measurements with the fewest decimal places
if the digit removed is more than 5
the preceding number increases by 1
if the digit removed is less than 5
the preceding number is unchanged
if the digit removed is 5, and the preceding number is odd
the mentioned preceding number will increase by 1
if the digit removed is 5, and the preceding number is even
the mentioned preceding number will stay the same
if the 5 is followed only by zeros
follow the even / odd rule
if the 5 is followed by nonzeros
increase the preceding number by 1
when doing a calculation you round off to the proper number of sig figs at each step
false
exact numbers limit your sig figs
false
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Find the indicated rates using the given information, Assume that x and y are positive. -Find $d x / d t$ where $y=2 \sqrt{x}-9$ and $d y / d t=5$ when $x=9$.
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**Decide whether the problem can be solved using precalculus or whether calculus is required. If the problem can be solved using precalculus, solve it. If the problem seems to require calculus, explain your reasoning and use a graphical or numerical approach to estimate the solution.** Find the distance traveled in $15$ seconds by an object moving with a velocity of $v(t)=20+3t$ feet per second, where $t$ is the time in seconds.
algebra
Graph the solution set. $$ \begin{aligned} x &\geq y^2-3 y+2\\ y &\geq 2 x-2 \end{aligned} $$
statistics
What is the probability that a person is younger than 50 given that she uses online banking? Has the probability that she is younger than 50 increased or decreased with the additional information?
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