2 years ago

Find the derivative of f(x) = 7x + 9 at x = 6

1 answer:

3 0

F(x)=7x+9
f´(x)=7
f´(6)=7

answer: f´(6)=7

f´(x)=Lim x⇒0 (f(x+h)-f(x)) / h
f´(6)=lim x⇒ 0 (7(6+h)+9 -(7*6+9)) / h
=lim x⇒0 ( 42+7h+9-42-9) /h
=lim x⇒0 (7h/h)=7

answer: f´(6)=7

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olchik [2.2K]

Note that this just produces three parametric equations:

$x(u) = 2 \sin(u)$
$y(u) = 5 \cos(u)$
$z(v) = v$

In the $x-y$ plane, this is just he parametric equation for an ellipse (as a function of u). The z is simply a linear function.

The surface is then an ellipse extruded along the z-axis. We get a elliptic cylinder.

6 0

3 years ago

Please help this is due in 20 mins, I will give brainliest

eduard

Answer:

L = 5 $\sqrt{10}$

Step-by-step explanation:

use Pythagorean Theorem:

L² + (5 $\sqrt{2}$ )² = (10 $\sqrt{3}$ )²

L² + 25(2) = 100(3)

L² + 50 = 300

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L = $\sqrt{250}$ = $\sqrt{25}$ · $\sqrt{10}$ = 5 $\sqrt{10}$

6 0

2 years ago

Read 2 more answers

Sum of one-half of a number and 4 is -16. find the number

Lady_Fox [76]

X is the number
sum means add

sum of half a number and 4 means
(x/2)+4
result is -16

(x/2)+4=-16
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3 years ago

If b = 5, what is b to the square root of 3

liubo4ka [24]

Is 125 because u need to take the 5 and add 3 on the top