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4 years ago

Write an equation for: The length of a rectangle is 6 times the width. use the variables l and w

Mathematics

1 answer:

Fittoniya [83]4 years ago

8 0

L=6w would be an equation for the length of a rectangle that is 6 times the width

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Sovle for h: v=1/3πr²h

erastovalidia [21]

Answer:

Step-by-step explanation:

$v = \frac{1}{3} \pi {r}^{2} h$

To solve for h multiply through by 3 to eliminate the fraction

That's

$3v = \pi {r}^{2} h$

Divide both sides by πr² to make h stand alone

$\frac{\pi {r}^{2} h}{\pi {r}^{2} } = \frac{3v}{\pi {r}^{2} }$

We have the final answer as

$h = \frac{3v}{\pi {r}^{2} }$

Hope this helps you

8 0

3 years ago

(X^-5y/y^3)^-1=<br><br> A)x^5/y^2<br> B)y^2/x^5<br> C)x^5 y^2<br> D)x^5 y^-3

Nezavi [6.7K]

$\left(\frac{x^{-5}y}{y^3} \right)^{-1} \\ \\ =\frac{y^3}{x^{-5}y} \\ \\ =\frac{y^2}{x^{-5}} \\ \\ =\boxed{x^5 y^2}$

3 0

2 years ago

X÷x+4=3÷x-1<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7Bx%20%2B%204%7D%20%20%3D%20%20%5Cfrac%7B3%7D%7Bx%20-%201%7D%

butalik [34]

$\frac{x}{x + 4}=\frac{3}{x - 1} \\3(x+4) = x(x-1)\\3x+12 =x^2-x\\0=x^2-4x-12\\0=(x-6)(x+2)\\X= 6, -2$

Steps:

First we cross multiply

Then Distribute,

Then move all terms to one side

Factor

Set each factor equal to zero

6 0

3 years ago

Approximate the change in the volume of a right circular cylinder of fixed radius requals21 cm when its height decreases from he

Tasya [4]

The volume of the cylinder is given by:
V = pi * r ^ 2 * h
For h = 12cm:
V1 = pi * ((21) ^ 2) * (12)
V1 = 16625.30832 cm ^ 3
For h = 11.9cm:
V2 = pi * ((21) ^ 2) * (11.9)
V2 = 16486.76409 cm ^ 3
The change in volume is given by:
V1-V2 = 16625.30832-16486.76409
V1-V2 = 138.54423 cm ^ 3
Answer:
the change in the volume is:
V1-V2 = 138.54423 cm ^ 3

4 0

3 years ago

URGENT

nadya68 [22]

Answer:

Scalene, Acute

Step-by-step explanation:

Scalene because each side has a different length

obtuse because one angle is more than 90°

6 0

3 years ago