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Lelechka [254]
2 years ago
9

What do you think the answer is, I really need help, please and thank you, Hurry

Mathematics
2 answers:
Scrat [10]2 years ago
3 0
I belive the answer is 15
erastova [34]2 years ago
3 0
Almost positive it's 15
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what is the example of a product that will have the same number of zeros in the factors and the products? what is one example of
Natalka [10]

Answer:

  • same: 30×40 = 1200
  • different: 20×50 = 1000

Step-by-step explanation:

Same: 30×40 = 1200 . . . . . 2 zeros in the factors; 2 in the product

Different: 20×50 = 1000 . . . 2 zeros in the factors; 3 in the product

__

Same: 0.3×0.4 = 0.12 . . . . no zeros in the factors; no zeros in the product

Different: 0.2×0.4 = 0.08 . . . no zeros in the factors; 1 zero in the product after the decimal point

_____

For a product, the number of zeros will be different if the combined factors of the numbers increase the number of factors of 10 beyond the sum of the factors of 10 of the numbers being multiplied.

<u>Example</u>: neither 2 nor 5 has a factor of 10, but their product does.

__

For a product that is a decimal fraction, the number of leading zeros will increase if the product of the mantissas of the numbers is less than 10. The number of trailing zeros will increase under the conditions discussed above. (0.25×0.4 = 0.100)

_____

<em>Additional comment</em>

Here, the term "mantissa" is used to refer to the portion of the number written in scientific notation that multiplies the power of 10.

3 0
2 years ago
The distance between Johannesburg and Cape town is 1682km. If it took the bus 19:28 min to arrive at its destination calculate t
grandymaker [24]

Answer:

the average velocity is  86 km/h for the trip

Step-by-step explanation:

from the definition of average velocity

average velocity = distance covered / time required = 1682 km /(19 h + 28 min/60 min/h) = 86 km/h

therefore the average velocity is  86 km/h for the trip

7 0
3 years ago
Read 2 more answers
Which of the following functions has a rate of change that stays the same?
aalyn [17]

Answer:

The answer is A because the rest are parabolas

5 0
2 years ago
Simplify the expression. <br><br>tan(-x)csc(-x)/sec(-x)cot (-x)
Scrat [10]
Tan(-x)csc(-x)sec -1  (-x)cot(-x) i am not sure, I hope you get a good grade, this is what i got.. ',: (
5 0
2 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
Contact [7]

Answer:

\dfrac{z-y}{a+b}

Step-by-step explanation:

Given expression:

\dfrac{z^2-y^2}{a^2-b^2}\div \dfrac{z+y}{a-b}

Substitute

a^2-b^2=(a-b)(a+b)\\ \\z^2-y^2=(z-y)(z+y)

into the expression:

\dfrac{(z-y)(z+y)}{(a-b)(a+b)}\div \dfrac{z+y}{a-b}\\ \\ \\=\dfrac{(z-y)(z+y)}{(a-b)(a+b)}\times \dfrac{a-b}{z+y}\\ \\ \\=\dfrac{z-y}{a+b}

4 0
3 years ago
Read 2 more answers
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