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11Alexandr11 [23.1K]
3 years ago
9

Write 9•9•9•9•9•9 in exponential form.

Mathematics
2 answers:
kherson [118]3 years ago
3 0
9^6 is that number in exponential form.
ANTONII [103]3 years ago
3 0
It’s 9^6
There is 6 of the 9s so that’s how you can tell
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Answer:

-47 Feet

Step-by-step explanation:

He is 47 feet below sea level, so he would be at -47 feet. If you are asking how deep he is, then it would be just positive 47 feet.

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The diagonals of a square measure 14 cm. Which is the length of a side of the square?
Kryger [21]
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Image explains everything worth alot of points! Thanks​
asambeis [7]

Answer:

11

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3 years ago
1] If 221ₓ= 25₁₀ find X<br> 2] if 3ₓ + 34ₓ - 40ₓ = 0 find x<br> 3] if 23ₓ = 1111₂ find x
Olin [163]

1.

2\cdot x^2+2\cdot x^1+1\cdot x^0=25\\2x^2+2x+1=25\\2x^2+2x-24=0\\x^2+x-12=0\\x^2+4x-3x-12=0\\x(x+4)-3(x+4)=0\\(x-3)(x+4)=0\\x=3 \vee x=-4

The base can't be negative, therefore x=3.

2.

3\cdot x^0+3\cdot x^1+4\cdot x^0-4\cdot x^1+0\cdot x^0=0\\3+3x+4-4x=0\\x=7

3.

2\cdot x^1+3\cdotx^0=1\cdot 2^3+1\cdot2^2+1\cdot2^1+1\cdot2^0\\2x+1=8+4+2+1\\2x=14\\x=7

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B is the correct answer
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