How is this number written in scientific notation? 0.001429 a. 1.429 x 10^3 b. 1.429 x 10^2 c. 1.429 x 10^-3 d. 1.429 x 10^-2

1.429  ×  10^ − 3

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

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to rewrite a literal equation you may need to divide by a number, or by a variable.

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answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

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