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solniwko [45]
3 years ago
12

Compute the exact value of the function for the given x-value without using a calculator. Show your work for full credit. (2 poi

nts) f(x) = 7x for x = 2
Mathematics
2 answers:
Ray Of Light [21]3 years ago
8 0

Answer:

it is 14

Step-by-step explanation:

<em>it is that answer man</em>

<em />

Eduardwww [97]3 years ago
8 0

Answer:

49

Step-by-step explanation:

<em>hey there,</em>

<em />

< The question is asking:

f(x) = 7^{x} and x = 2

It looks like f(x) = 7x, so in the future make sure to put "^" so people know it's an exponent.

Plug in x = 2 into the exponent.

7^{x} = 7^{2} = 49

49 is your final answer. >

<u>Hope this helped! Feel free to ask anything else.</u>

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A biologist wants to know the width w of a river in order to properly set instruments for studying the pollutants in the water.
belka [17]

Answer:   The river is 148.3 feet wide.

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The triangle formed is a right triangle.

Using SOH CAH TOA

tan 56 = \frac{x}{100}

Multiplying 100 in both sides

x = 100 \times tan56

x = 100 \times 1.4826

x = 148.26

Rounding to the one decimal place

x = 148.3

Hence river is 148.3 feet wide.   .............. Answer

Hope it will help :)

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Step-by-step explanation:

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