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3 years ago

Solve for x: V x + 6 = 7

Mathematics

2 answers:

MrRissso [65]3 years ago

6 0

Answer:

x > 0, if not 4/x < 0

0 < 4/x < 6/7

0 < 28/x < 6

0 < 28 < 6x

0 < 4 2/3 < x

Step-by-step explanation:

allsm [11]3 years ago

6 0

Answer:

x = 1/v

Step-by-step explanation:

Start with vx + 6 = 7

- Subtract 6 on both sides, in order to get rid of it

- Ending up with vx = 1, divide v on both sides in order to get x isolated and by itself (for finding its value)

- IN THE END: x = 1/v

Hope this made sense !

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A lampshade has a height of 12cm and upper and lower diameters of 10cm and 20cm A)what area of material is required to cover tha

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Answer:

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$(b)\ Volume = 700\pi$

Step-by-step explanation:

Given

$h = 12$

$d_1 = 10$ --- lower diameter

$d_2 = 20$ --- upper diameter

Solving (a): The curved surface area

This is calculated as:

$Area = \pi l(r_1 + r_2)$

Where

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$r_2 = 0.5 * d_2 = 0.5 * 20 = 10$ --- upper radius

And

$l = \sqrt{h^2 + (r_1 - r_2)^2$ ---- l represents the slant height of the frustrum

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$l = \sqrt{144 + 25$

$l = \sqrt{169$

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So, we have:

$Area = \pi l(r_1 + r_2)$

$Area = \pi * 13(5 + 10)$

$Area = \pi * 13(15)$

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Solving (b): The volume

This is calculated as:

$Volume = \frac{1}{3}\pi * h * (r_1^2 + r_2^2 + (r_1 * r_2))$

This gives:

$Volume = \frac{1}{3}\pi * 12 * (5^2 + 10^2 + (5 * 10))$

$Volume = \frac{1}{3}\pi * 12 * (25 + 100 + (50))$

$Volume = \frac{1}{3}\pi * 12 * (175)$

$Volume = \pi *4 * 175$

$Volume = 700\pi$

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Solve for x: V x + 6 = 7​

Solve for x: V x + 6 = 7