8*4 = 32 then 32 / 1280 = 40 as the dimensions.
Convert to like denominators. 1/4 is equal to 2/8, so he can take two cups of the measuring cup he’s using to get the amount of flour needed.
The product of the expression in scientific notation is expressed as 6.45 * 10^-9
<h3>Scientific notations</h3>
The standard scientific notation is expressed as:
A * 10^n
A is any value between 1 and 10
n is any integer
Given the product
(4.3 x 10-7)(1.5 x 10-3)
= (4.3 * 1.5)(10^-7 * 10^-3)
= 64.5 * 10^-10
= 6.45 * 10^-9
Hence the product of the expression in scientific notation is expressed as 6.45 * 10^-9
Learn more on scientific notation here: brainly.com/question/5756316
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2, 3, and 5.
Hope this could help.
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