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GaryK [48]
3 years ago
8

Find the derivative of f(x) = 7 divided by x at x = 1.

Mathematics
2 answers:
Wewaii [24]3 years ago
6 0

just took test it is x= -7

julsineya [31]3 years ago
3 0
I find it best to switch everything exponents when taking derivatives.
F(x) = 7/x
Same as..
F(x) = 7x^-1
Take derivative..
F'(x) = -7x^-2
Plug in x = 1
F'(1) = -7(1)^-2
F'(1) = -7
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pychu [463]

Answer:

<u>⅓</u>

<h2>Step-by-step explanation:</h2>

\frac{5}{9}  \times  \frac{3}{5}

=  \frac{1}{3}  \times  \frac{1}{1}

=  \frac{1}{3}

<h2>Checking:</h2>

\frac{1}{3}  \div  \frac{3}{5}

=  \frac{1}{3}  \times  \frac{5}{3}

=  \frac{5}{9}

#CarryOnLearning

8 0
3 years ago
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What expression is equivalent to 2x+3y-x-(8+1)
Paha777 [63]

Answer:

Step-by-step explanation:

2x + 3y - x - 9

x + 3y - 9

3 0
2 years ago
(11-6)^2+6x2-(3+3)^2<br><br> A. 0<br><br> B. 1<br><br> C. 16<br><br> D. 26
Dahasolnce [82]

Answer: =1

Step-by-step explanation:

\left(11-6\right)^2+6\cdot \:2-\left(3+3\right)^2

=5^2+6\cdot \:2-\left(3+3\right)^2

=5^2+6\cdot \:2-6^2

=25+6\cdot \:2-6^2

=25+6\cdot \:2-36

=25+12-36

=1

3 0
2 years ago
Peter is twice the age of Sara. If their total age is 27 years. how old is Sara?
Xelga [282]

Answer:

Just do 27x2 bro simple as that

Step-by-step explanation:

6 0
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.21 as a fraction would be 21/100
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