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bearhunter [10]
3 years ago
8

8^2+9(12/3x2)-7 explain each of your steps

Mathematics
1 answer:
REY [17]3 years ago
6 0
8^2 + 9 * (12/3 * 2) - 7 <--- First thing that PEMDAS is Parenthesis. But oh wait there are both division and multiplication, which one comes first? Division, so you go that

8^2 + 9 * (4*2) -7 <--- Go ahead and multiply now whats still inside the parenthesis

8^2 + 9 * 8 - 7 <--- Next is the exponents, you gotta remember that 8 to the second power is not 8*2 its 8*8

64 + 9 * 8 - 7 <--- Since there isn't division, just go and multiply 9*8

64 + 72 - 7 <--- I see addition first! So add 64 + 72

136 - 7 <--- Lastly subtract

129 <--- That is your answer :) Hope this helped
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Is the statement 21:35 = 24:40 true?give reason
Andrej [43]
It’s true

21:35 simplifies to 3:5 when divided by 7 on both sides

24:40 also simplifies to 3:5 when divided by 8 on both sides

Hope that helps!
4 0
3 years ago
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In a company there are 33 male and 42 female staff. Calculate the percentage of male and female staffs
VMariaS [17]

Answer: 44%, 56%

Step-by-step explanation:

Given

A company has 33 males and 42 female staff

So, the total staff is the sum of male and female

\Rightarrow \text{Total=}33+42\\\Rightarrow \text{Total=}75

The percentage of male staff is

\Rightarrow \text{Male }\%=\dfrac{33}{75}\times 100\\\\\Rightarrow  \text{Male }\%=44\%

The percentage of female staff is

\Rightarrow \text{female }\%=\dfrac{42}{75}\times 100\\\\\Rightarrow  \text{female }\%=56\%

7 0
2 years ago
Determine the angle of rotation<br><br> please help and provide explanation.
erastovalidia [21]

Answer:

Rotaded areound the orgin counter clockwise 90 degrees

5 0
3 years ago
Help me simplify this​
stepan [7]
Do you want the whole solution simplified or the alternative form?
5 0
3 years ago
. 25 points .please help Pythagoras theorem.​
Salsk061 [2.6K]

Answer:

  • 20 cm

Step-by-step explanation:

The bottom leg is divided into equal segments, one of them is b.

It means the bottom leg is b + b = 2b.

<u>According to Pythagorean:</u>

  • 41² = (2b)² + 9²

<u>Solve for b:</u>

  • 1681 = 4b² + 81
  • 4b² = 1681 - 81
  • 4b² = 1600
  • b² = 400
  • b = √400
  • b = 20 cm
4 0
3 years ago
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