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Harrizon [31]
3 years ago
5

1,Combine the Like Terms: -2x + 7 + 9x - 4

Mathematics
1 answer:
hodyreva [135]3 years ago
3 0
1. 7x+3
2. 8x+19
3. 13x-12
4. 3x-38
5. 6x-1
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How many 2-letter combinations can be made from the letters A, B, C, and D?
yulyashka [42]

Answer:

12

Step-by-step explanation:

each letter can be used with each other 3 times and there are 4 letters so 12

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3 years ago
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A calculator screen shows a number in scientific notation as 4.18E‒8. Write this number in standard form.
Citrus2011 [14]

Answer:

.0000000418

Step-by-step explanation:

So you will start from the decimal and move 8 places to the left.

E-8 is the same as 10^-8 so you will move to the left

If it was E8 you would move to the right 8 places.

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3 years ago
Kyle has a aquarium in the shape of a rectangular prism.The aquarium is 24 inches long and 10 inches wide. The volume of the aqu
jasenka [17]
To calculate to volume of a rectangular prism you use the formula l × w × h = V

l, w, and h are the sides, and V is the volume

So... 24 × 10 × h = 2,880

h = 2,880 / 240

h = 12


4 0
3 years ago
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The area of the rectangle<br> shown is 54 square units.<br> What is its perimeter
Ipatiy [6.2K]

Answer:

perimeter of a square= 4 times square root of area

4 \sqrt{54}  = 29.39

6 0
3 years ago
Please help! I will mark the 1st answer as brainiest.
uranmaximum [27]

Answer:

256 m^2

Step-by-step explanation:

area = b x h

16 x 16 = <em>256</em>

both combined would be <em>512</em>

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3 years ago
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