Answer
$$7.75\times 10^{-4}$$
Work Step by Step
Move the decimal point four places to the right to create a number between 1 and 10. The original number is less than $1$, so use a negative exponent:
$$0.000775=7.75\times 10^{-4}.$$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Skills Handbook - Scientific Notation and Significant Digits - Exercises - Page 980: 3
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