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Alenkinab [10]
3 years ago
12

Find the derivative of

Formula1" title="f(x) = \frac{6}{x} " alt="f(x) = \frac{6}{x} " align="absmiddle" class="latex-formula">

at x = 2
Mathematics
2 answers:
Annette [7]3 years ago
6 0
Above my [email protected]#$%^&*()_+=-{}|\][:"';?><,./

Julli [10]3 years ago
4 0
f(x)= \frac{6}{x}
f (x)=6 x^{-1}
Derivative
f^{'} (x)=-6 x^{-2}
at x=2
f^{'} (x)=-6( 2^){2}
f^{'} =-24
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GEOMETRY PROBABILITY: EXPLAIN PLEASE! BRAINLIEST GIVEN !!
love history [14]

Answer: 18%

There are 1879 people who are in the "graduate" row and "receiving aid" column. This is out of 10730 people total (bottom right corner)

The probability is 1879/10730 = 0.175 approximately which converts to 17.5% which rounds to 18%

3 0
3 years ago
11²-5+4(7)/(4)(3)<br><br> Help!
siniylev [52]

Answer: 137

Step-by-step explanation: 11^2−5+(4)(7)/4(3)

121−5+(4)(7)/4(3)

116+(4)(7)/4(3)

116+(28/4)(3)

116+(7)(3)

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137

6 0
3 years ago
A model rocket is launched with an initial velocity of 240 ft/s. The height, h, in feet, of the rocket t seconds after the launc
Setler [38]

Answer:

About 1.85 seconds and 13.15 seconds.

Step-by-step explanation:

The height (in feet) of the rocket <em>t</em> seconds after launch is given by the equation:

h = -16t^2 + 240 t

And we want to determine how many seconds after launch will be rocket be 390 feet above the ground.

Thus, let <em>h</em> = 390 and solve for <em>t: </em>

<em />390 = -16t^2  +240t<em />

Isolate:

-16t^2 + 240 t - 390 = 0

Simplify:

8t^2 - 120t + 195 = 0

We can use the quadratic formula:

\displaystyle x = \frac{-b\pm\sqrt{b^2 -4ac}}{2a}

In this case, <em>a</em> = 8, <em>b</em> = -120, and <em>c</em> = 195. Hence:

\displaystyle t = \frac{-(-120)\pm \sqrt{(-120)^2 - 4(8)(195)}}{2(8)}

Evaluate:

\displaystyle t = \frac{120\pm\sqrt{8160}}{16}

Simplify:

\displaystyle t = \frac{120\pm4\sqrt{510}}{16} = \frac{30\pm\sqrt{510}}{4}

Thus, our two solutions are:

\displaystyle t = \frac{30+ \sqrt{510}}{4} \approx  13.15 \text{ or } t  = \frac{30-\sqrt{510}}{4} \approx 1.85

Hence, the rocket will be 390 feet above the ground after about 1.85 seconds and again after about 13.15 seconds.

4 0
3 years ago
Find x, y and z for the following triangle. ​<br>Please show the steps with details, Thanks!
Lubov Fominskaja [6]

Answer:

x = 100°

y = 125°

z = 55°

Step-by-step explanation:

A straight line is 180°

A triangle is 180°

Solve in this order:

X: 180 - 80 = 100

Z: 180 - 80 - 45 = 55

Y: 180 - 55 = 125

5 0
3 years ago
Khan question, please help
Salsk061 [2.6K]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
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