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erastova [34]
4 years ago
9

Which relation is a function of x?

Mathematics
1 answer:
jeka944 years ago
3 0

Answer:

1

Step-by-step explanation:

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If 5+ 20 -22-3х - 10.2-2x+5, what is the value of х?
Elodia [21]

Answer:

<h2>3</h2>

Step-by-step explanation:

5+20\cdot2^{2-3x}=10\cdot2^{-2x}+5\qquad\text{subtract 5 from both sides}\\\\20\cdot2^{2-3x}=10\cdot2^{-2x}\qquad\text{divide both sides by 10}\\\\2\cdot2^{2-3x}=2^{-2x}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\2^{1+2-3x}=2^{-2x}\\\\2^{3-3x}=2^{-2x}\iff3-3x=-2x\qquad\text{subteact 3 from both sides}\\\\-3x=-2x-3\qquad\tex\qquad\text{add}\ 2x\ \text{to both sides}\\\\-x=-3\qquad\text{change the signs}\\\\x=3

8 0
3 years ago
After a special medicine is introduced into a petri dish full of bacteria, the number of bacteria remaining in the dish decrease
Crazy boy [7]

Answer:

  0.17

Step-by-step explanation:

The function can be rewritten as ...

  B(t) = 9300·((1/2)^6)^t = 9300·(1/2)^(6t)

In order to multiply the number of bacteria by 1/2, the value of the exponent 6t must be equal to 1:

  6t = 1

  t = 1/6 ≈ 0.166667 ≈ 0.17

The culture loses half its size every 0.17 seconds.

7 0
4 years ago
In constructing a box-and-whisker plot for the data set below at which values would you draw the left and right sides of the box
wel
Eh that ones hard you sure thats all the ansers 


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3 years ago
A mean average of 60 on 8
makkiz [27]
You add up all the numbers then divide the total by how many numbers you had originally
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With explanation pls
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Sum of all angles is 360. There are 8 angles. 360/8 is 45. Exterior and interior angles are supplementary meaning their sum is 180. 180-45 is 135.
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3 years ago
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