Kim multiplied 8 by 0.952 and got 76.16 how can you estimate to show that Kim's answer is incorrect

1 answer:

3 0

Kim multiplied 8 by 0.952 and got 76.16 which is the wrong answer, the correct answer is 7.616. His mistake is about decimal point.
he is multiplying a number with a decimal number and decimal number have first digit less than 1 that is zero. In decimal number point is after zero so when you multiply that number with 8 the answer should have decimal point after first digit.

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slavikrds [6]

Answer:

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Step-by-step explanation:

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3 years ago

Find the smallest power of 10 that will exceed M. Let M = 118,526.65902.

zavuch27 [327]

Answer:

The smallest power of 10 that will exceed $M$ is $10^{6}$ .

Step-by-step explanation:

We can use the following approach to determine the smallest power of 10 that will exceed M. We can transform that number into scientific notation, which is of the form:

$x.y \times 10^{n}$ , $\forall \,x,y\in \mathbb{N}$

Where:

$x$ - Integer part, formed by a digit, which is of the highest order.

$y$ - Decimal part, formed by a digit onwards.

$n$ - Power grade.

The smallest power of 10 that will exceed M is $10^{n+1}$

If $M = 118,526.65902$ , then, the power grade is number of spaces that dot must be moved leftwards. In this case, dot must be moved 5 spaces on the left. The integer part is 1 and the decimal part is 1852665902. Then, the value of $M$ in scientific notation is: