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zlopas [31]
3 years ago
6

Does anyone know how to do this?

Mathematics
1 answer:
Scilla [17]3 years ago
6 0
Wouldn’t number seven be

2a+2b because of the distributive property?
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Complete the Steps to Solve for x.<br><br> -0.57x+0.27x =8.1
IgorLugansk [536]

Answer:

x=-27

Step-by-step explanation:

-0.57x+0.27x = 8.1

-0.3x = 8.1

x = -8.1/0.3

x = -27

6 0
3 years ago
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Which expression is equivalent to −1/4x+1/2?
Marat540 [252]
D. 1/4 (-x+2)                  

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3 0
3 years ago
Need help! much appreciated
Volgvan

Answer:

C-D = <u>6</u>

A-B = <u>3.25</u>

D = <u>118</u>

Step-by-step explanation:

C-D = 6 because the line is the same as B-C

A-B = 3.25 because the line is the same as A-D

D = 118 because the angle of B is vertically opposite to D

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3 years ago
7.The mass of a grain of sand is approximately 2.8×10^−11 grams
ZanzabumX [31]
The Answer is A. Milligram.
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3 years ago
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Given that<br> x:8=2:x<br> Calculate the positive value of x.
kow [346]

Answer:

x = 4

Step-by-step explanation:

x : 8 = 2 : x \\  \frac{x}{8}  =  \frac{2}{x}  \\  \\ cross \:  \: multiple \\  {x}^{2}  = 16 \\ x =  \sqrt{16}  \\ x = 4

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3 years ago
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