# Scientific notation mul

A student found the product of 8 × 10

^{3}and 7 × 10^{5}to be 5.6 × 10^{8}. What is the error? What is the correct product? Complete the explanation.## Correct answer:

**Showing 1 comment:**

**Mathematican**

8*7 = 56 = 5.6*10

thus 1 (one) must be added to 3+5+1 = 8+1 =9 in exponents

^{1}thus 1 (one) must be added to 3+5+1 = 8+1 =9 in exponents

### You need to know the following knowledge to solve this word math problem:

### Grade of the word problem:

## Related math problems and questions:

- Mistake in expression

While attempting to multiply the expression (2 - 5i)(5 + 2i), a student made a mistake. (2 - 5i)(5 + 2i) = 10 + 4i - 25i - 10i2 = 10 + 4(-1) - 25(-1) - 10(1) = 10 - 4 + 25 - 10 = 21 Complete the explanation and correct the error. Hint: The student incorre - Mean

For a student's food, the mean of 50 items is 38.6. When checking the work, he found that he had taken one item as 50 to read as 40 in these circumstances correctly. What should the correct arithmetic mean? - Three points 2

The three points are A(3, 8), B(6, 2), and C(10, 2). Point D is such that the line DA is perpendicular to AB, and DC is parallel to AB. Calculate the coordinates of D. - Peter 15

Peter try to calculate: 3/4 x 2/3 He did 3x3 to get 9 and 4 x 2 to get 8. The final answer is 8/9. Can you explain the error and how to help? What is the correct answer?

- Balloons 2

One balloon is 3 7/10 meters above the ground. A second balloon 2 3/5 meters higher. How far above the ground is the second balloon? Complete the addition equation and a related subtraction equation to model the problem. Use x to represent the height of t - Petra's test

The teacher will give a correct answer score of eight points, and the wrong answer will be deducted three points. The total score obtained by the school is 36 points. If Petra answered six questions correctly, how many questions were answered incorrectly - Study results

There are seven students in the class with excellent results, six praiseworthy, five good, four sufficient, and three insufficient students. What is the probability that it will be a good student when summoned?