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Zigmanuir [339]
3 years ago
14

What is the value of d/dx (6/x^4 + 1/x^2) at x = -1 ?

Mathematics
1 answer:
zheka24 [161]3 years ago
7 0

Answer:

\frac{d}{dx}\left(\frac{1+x^4+x^6}{x^2+x+1}\right)=\frac{4x^7+5x^6+8x^5+3x^4+4x^3-2x-1}{\left(x^2+x+1\right)^2}

Step-by-step explanation:

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The ratio of the heights of two similar cylinders is 1:3. If the volume of the smaller cylinder is 67cm cubed, find the volume o
irina1246 [14]

Answer:

volume = 1809 cm³

Step-by-step explanation:

The ratio of the height of two similar cylinder is 1:3 . The volume of the smaller cylinder is 67 cm³. The volume of the larger cylinder can be computed below:

If 2 object are similar and the ratio of the corresponding sides is x ,then the ratio of their volume is x³.

ratio of height = 1/3

ratio of volume = (1/3)³ = 1/27

volume of smaller cylinder/volume of larger cylinder = 1/27 = 67/x

where

x = volume of the larger cylinder

x = 27 × 67

x = 1809  cm³

volume = 1809 cm³

5 0
4 years ago
PLEASE HELP ASAP
mel-nik [20]

I NEED PTS SORRY

SO THIS IS MY ANSWER:45tyuiuytredfghj

7 0
3 years ago
HELP!!! I WILL GIVE BRAINLIEST!!! 10 PTS!!!
tatiyna

Answer:

x= 55 degrees

w = 5

Step-by-step explanation:

Triangle PQR contains two triangles, QPS and PSR.

Looking at triangle QPS, it is an isosceles triangle. This is shown by the two short lines that cuts line QP and line QS.

In an isosceles triangle, two sides and two angles are equal. The two equal angles are the base angles.

Therefore,

angle P and angle S are equal. Also

Line QP and line PS are equal. This means

6w - 10 = w

6w-w = 10

5w = 10

w = 10/2 = 5

Angle Q + 100 degrees = 180 ( sum of angles on a straight line)

Angle Q = 180 - 100 = 80 degrees

Angle Q = Angle S(base angles of an isosceles triangle)

Angle PSR = 180 - 80 = 100 degrees( sum of angles on a straight line is 180)

Angle PSR + x + 25 = 180

x = 180 - 25 - 100 = 55 degrees

6 0
3 years ago
Km=m/2+p. Solve for m
kirill [66]
M=2p over2k+1<span>Km=m/2+p. Solve for m</span>
4 0
3 years ago
Five times a number decreased by eight is at most ten more than twice the number
Allisa [31]
5n-8 \leq 2n+10 \\ 5n-8+8 \leq 2n+10+8 \\ 5n \leq 2n+18 \\ 5n-2n \leq 2n+18-2n \\ 3n \leq 18 \\  \frac{3n}{3} \leq  \frac{18}{3} \\ n \leq 6
8 0
3 years ago
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