Write the number 3.8 x 10-4 in standard form.
1 answer:
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Answer:
The answer is,
Step-by-step explanation:
The given product is,
=
---------------------(1)
Now, the first product to compare is,
= - 0.25 ----------------------------(2)
The second product to compare is,
= 0.5 ------------------------(3)
The 3rd product to compare is,
= 3 ----------------------------(4)
The 4th product to compare is,
=
= 0.05625 -----------------(5)
Comparing all the values , we get (3) is closest to (1).
Hence, we get, the answer is,
To determine how much of the wall is blue we first need to find its area. The wall is a rectangle, then its area is the product of its height and length:
Hence, the area of the wall is 140 square ft. To determine how much of the wall is already painted we multiply this by 1/2, then:
Therefore, 70 square ft are blue.