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Karo-lina-s [1.5K]
2 years ago
7

Express your answer in scientific notation. 0.00045 – 2.5-10-5​

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
8 0

Answer:

17.49955

Step-by-step explanation:

Hope this helps

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Type the correct answer in each box. use numerals instead of words. students in a reading class have three options for their boo
Alexus [3.1K]

The answers to the questions on how she would use the colored chips are given here:

  • brochure 4 blue chips
  • writing a new article 6 yellow chips
  • designing a computer presentation 10 red chips

<h3>How to solve for the values</h3>

For the first percentage

20 / 100 = x/20

= 20 * 20 = 100x

400 = 100x

divide through by 100

x = 400/100

x = 4

For the second percentage

30/100 = x/20

600 = 100x

x = 600/100

x = 6

For the last

50/100 = x/20

1000 = 100x

x = 10

The proof is that 6 + 4 + 10 still gives us 20

Read more on percentages here: brainly.com/question/24877689

#SPJ1

4 0
2 years ago
What is the definition of mean???
Scilla [17]
Mean, in terms of math, is the total added values of all the data in a set divided by the number of data <em>in</em> the set. Make sense? If not, here' an example...

Let's say this is my data set:
1, 2, 5, 4, 3, 8, 7, 4, 6,10

To find the mean...
Step 1: Add all of them together.
1+2+5+4+3+8+7+4+6+10 is what? 50. Now that you have this number...
Step 2: Divide by the amount there are. Basically, count up all of the numbers. How many are there? There are 10. Finally...
Step 3: Divide. 50/10 is 5, so the mean of this data set would be 5. Get it? I sure hoped this helped :)
3 0
3 years ago
Ethan can blow 15 balloons in 20 minutes Junwei can blow 18 balloons in 25 minutes and vishal can blow 16 balloons in 21 minutes
monitta

Answer:

ethan blows fastest

Step-by-step explanation:

5 0
3 years ago
Answer plz answer plz​
yaroslaw [1]

Answer:

C. 2 y^2

Step-by-step explanation:

( {3} \degree  {y}^{2} ) \times \: 2(xy) \degree \\={3} \degree  {y}^{2}  \times \: 2\times x \degree\times y \degree \\=1  {y}^{2}  \times \: 2\times 1\times 1 \\  =  {y}^{2}  \times 2  \\    = 2 {y}^{2}

3 0
3 years ago
Read 2 more answers
Will give brainliest if correct
goldfiish [28.3K]

Answer:

15) Slope (m) = -7/5

16) Slope (m) = 0

17) Slope (m) = 1/0 (It's an undefined slope, in other words it's just a vertical line)

Step-by-step explanation:

Use this formula for each, to find slope⤵⤵⤵

\frac{y {2} - y1}{x2 - x1}

15) ⤵

\frac{10 - 3}{ - 1 - 4}  =  \frac{7}{ - 5}  =  -  \frac{7}{5}

16) ⤵

\frac{ - 5 - ( - 5)}  {2 - 3} =  \frac{0}{ - 1}  = 0

17) ⤵

\frac{ 3 - 2}{ - 5 - ( - 5)}  =  \frac{1}{0}

Hope this helps :)

6 0
2 years ago
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