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Tanya [424]
3 years ago
11

PLS HELP ME ASAP FOR 42!! (MUST SHOW WORK!!) + LOTS OF POINTS!! *no calculator* *best if show work on picture*

Mathematics
1 answer:
Tpy6a [65]3 years ago
4 0
It's 2.5 bc it goes up by 2.5 everytime
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please refer to this image

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2 years ago
The ratio of students who wear glasses to the total class is 2:5
Taya2010 [7]

Answer:

a. 2:3, b. 25 students, c. 3:2

Step-by-step explanation:

a. 5 (total) - 2 (with glasses) = 3 (without glasses), making the ratio 2:3.

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c. 25 (total students) - 15 (without glasses) = 10 (with glasses). (10+5):(15-5) is 15:10, which, when simplified, equals to 3:2.

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2 years ago
What is the inverse of f(x)=2^x
GuDViN [60]

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<h2>{f}^{ - 1} (x) =  \frac{ln(x)}{ln(2)}</h2>

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{2}^{y}  = x

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yln(2)=ln(x)

<h3>\frac{yln(2)}{ln(2)}  =  \frac{ln(x)}{ln(2)}</h3><h3>y =  \frac{ln(x)}{ln(2)}</h3><h3>{f}^{ - 1} (x) =  \frac{ln(x)}{ln(2)}</h3><h3>Hope it is helpful...</h3>
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Step-by-step explanation:

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