The estimate of the amount 28,945,000 is 3 × 10⁷
<h3>What is an estimate of a value?</h3>
An estimate is a rough or approximate calculation or judgement value.
The question is with regards to the scientific notation which is of the form a × 10ᵇ, where absolute <em>a</em> is of a value 1 ≤ a < 10
The scientific notation form of a number is found as follows;
The decimal point on the number is moved from its position to the point such that the number of non zero numbers to the left of the decimal point is 1
The number <em>b</em> is the number of places to which the decimal point is moved.
<em>b</em> is positive when the decimal point is moved to the left
<em>b</em> is negative when the decimal point in the number is moved to the right
<em>b</em> is zero when the decimal point is not moved
The scientific notation number formed, <em>a</em> × 10ᵇ, which is read as <em>a</em> times 10 raised to the power <em>b</em>.
The zeros in the tail to the right of the decimal point are removed
The number 28,945,000 in scientific notation is 2.8945 × 10⁷
The number part of the scientific notation is approximated to the next higher whole number, as follows;
The first digit to the right of the decimal point is 8 which is larger than 5, therefore the 2 is increased to 3
The approximated number is therefore;
Learn more about scientific notation in mathematics here:
brainly.com/question/5756316
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