Question

There are several ways you might think you could enter numbers in WebAssign, that would not be interpreted as numbers. N.B. There may be hints in RED!!!
-You cannot have commas in numbers.
-You cannot have a space in a number.
-You cannot substitute the letter O for zero or the letter l for 1.
-You cannot include the units or a dollar sign in the number.
-You can have the sign of the number, + or -.

Which of the entries below will be interpreted as numbers?

a) 1.56e-9
b) -4.99
c) 40O0
d) 1.9435
e) 1.56 e-9
f) $2.59
g) 3.25E4
h) 5,000
i) 1.23 inches

Answer 1

Answer:

a) $1.56e^{-9}$

b) -4.99

d) 1.9435

Step-by-step explanation:

We are given certain rule to identify number. We have to identify from the entries that can be interpreted as numbers.

a) 1.56e-9

This a number as there are no spaces, no comma, no units.

b) -4.99

This a number as there are no spaces, no comma, no units.

c) 40O0

This is not a number as 0 is substituted by O.

d) 1.9435

This a number as there are no spaces, no comma, no units.

e) 1.56 e-9

This is not a number as it contains a space.

f) $2.59

This is not a number as it contains a dollar sign.

g) 3.25E4

This is not a number as it contains alphabet.

h) 5,000

This is not a number as there is a comma in the given.

i) 1.23 inches

This is not a number as it contains a unit.