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23 June, 10:00

Correct Number Formats Numbers may be entered in several formats - including scientific notation and numerical expressions.

WebAssign uses standard scientific or "e" notation for "times 10 raised to the power." For example, 1e3 is the scientific notation for 1000.

O You cannot have a space in a number.

O You cannot substitute the letter O for zero or the letter l for 1.

O You cannot include the units in the number unless specifically asked for.

O You can include the sign + or - of the number.

1. Which of the entries below will be interpreted as a valid numeric answer in WebAssign?

(Select all that apply.)

a. 1.56e-9

b. 3.25E4

c. 2.54 m

d. 1.56 e-9

e. 1.9435

f. - 4.99

g. 1.23 inches

+5
Answers (1)
  1. 23 June, 10:03
    0
    a. Valid

    b. Invalid

    c. Invalid

    d. Invalid

    e. Valid

    f. Valid

    g. Invalid

    Explanation:

    a.

    Since, it follows all the four rules,

    Therefore, this number is Valid

    b.

    It uses upper case E, instead of lower case e.

    Therefore, it is Invalid

    c.

    It violates third rule for including unit.

    Therefore, it is Invalid

    d.

    It violates the first rule. As, there is a space between 6 and e. While in the example given in question, there is no gap.

    Therefore, it is Invalid

    e.

    Since, it follows all the four rules,

    Therefore, this number is Valid

    f.

    Since, it follows all the four rules,

    Therefore, this number is Valid

    g.

    It violates third rule for including unit.

    Therefore, it is Invalid
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