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Law Incorporation [45]
2 years ago
7

Simplify the expression. Write the answer using scientific notation.

Mathematics
1 answer:
GREYUIT [131]2 years ago
7 0

Answer:

B.

2.52 \times 10 ^{ - 2}

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{1,2,3,...,75,76,78} how many numbers in the set above have 2 as a factor but not have 10 as a factor
Alinara [238K]

Answer:

<h2>A) 32</h2>

Step-by-step explanation:

From 1 to 10 we have 4 numbers which are {2,4,6,8}

From 10 to 20 we have 4 numbers which are {12,14,16,18}

.

.

.

From 70 to 78 we have 4 numbers which are {72,747,6,78}

<em><u>conclusion:</u></em> we 4×8 number = 32

5 0
3 years ago
What's 80÷7 I need this answer fast thank you it's for 65 points
klemol [59]
In order to solve this, we must find out how many times 7 goes into 80. We can do this by either subtracting individual 7s from 80, or by adding 7s together until we cannot add another without going past 80.

For this answer, I will use the addition method.

7 + 7 = 14

14 + 7 = 21

21 + 7 = 28

28 + 7 = 35

35 + 7 = 42

42 + 7 = 49

49 + 7 = 56

56 + 7 = 63

63 + 7 = 70

70 + 7 = 77

From 77, we cannot add another 7 to it without going over 80, since 77 + 7 = 84.

So, let's count the sevens that we have added up so far, and when we do, we can see that there are 11 of them, adding up to 77.
So 7 goes into 80 11 times. Now, let's find the remainder...

To find the remainder, you just need to subtract the final added number from the number you are dividing from.

80 - 77 = 3

80 / 7 = 11, remainder 3
Hope that helped! =)
6 0
3 years ago
Read 2 more answers
Bernardo is converting a fraction, StartFraction a Over b EndFraction, to a percent. Both a and b are whole numbers and not equa
anyanavicka [17]

Answer:

Percent = \frac{100a}{b}\%

Step-by-step explanation:

Given

\frac{a}{b}

Required

Convert to fraction

To do this, we simply multiply the fraction by 100%

This gives:

Percent = \frac{a}{b} * 100\%

Percent = \frac{a * 100}{b}\%

Percent = \frac{100a}{b}\%

The expression cannot be further simplified.

Take for instance the fraction is: \frac{2}{5}

Using the same analysis, the percentage would be:

Percent = \frac{2}{5} * 100\%

Percent = \frac{2 * 100}{5}\%

Percent = \frac{200}{5}\%

Percent = 40\%

5 0
2 years ago
Read 2 more answers
Ahlojjhbvgfotfdgouyf<br> (word count)
AnnZ [28]

Answer:

12-{16-(5×2)}²

12-(16-10)²

12-(6)²

12-36

(-24)

8 0
3 years ago
How much mass does water contains?
never [62]
<span>One cup of water weighs approximately 8 ounces, which is equal to 225 grams. One cup holds 225 milliliters of water. The volume and weight of 1 cup of water are the same number under the metric system because the density of water is 1 gram per milliliter.</span>
7 0
3 years ago
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