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2 years ago

3. The area of a triangle-shaped piece of wood

Mathematics

1 answer:

DanielleElmas [232]2 years ago

3 0

Answer:

12.6 square inches

Step-by-step explanation:

A=(1/2)bh

A=(1/2)12*2.1

A=12.6 square inches

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Explain the difference between finding the volume of a cylinder and the volume of a cone.(please help me)

Natali5045456 [20]

Answer:

The difference is that the height of the cone is divided by 3

Step-by-step explanation:

formular of cylinder

$V=\pi r^2h$

Formular of a cone

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

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2 years ago

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balu736 [363]

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2 years ago

Identify the transformations y = |x| ‐ 6

siniylev [52]

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2 years ago

If (x - 4) varies inversely as (y + 3) and x = 8 when y = 2, what is x when y = - 1?

denpristay [2]

Answer:

$x=14$

Step-by-step explanation:

If two values are inversely proportional, their product must be maintained. That way, if one value goes up, the other goes down by the same extent.

Therefore, if $(x-4)$ and $(y+3)$ vary inversely, their product will be the same for all values of $x-4$ and $y+3$ .

Let $x=8$ and $y=2$ as given in the problem. Substitute values:

$(8-4)(2+3)=(4)(5)=20$

Hence, the maintained product is $20$ .

Thus, we have the following equation:

$(x-4)(y+3)=20$

Substitute $y=-1$ to find the value of $x$ when $y=-1$ :

$(x-4)(-1+3)=20,\\(x-4)(2)=20,\\x-4=10,\\x=10+4=\boxed{14}$

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1 year ago

Solve this rational equation <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7Bx%20%2B%204%7D%20%20%3D%20%20%5Cfrac%7B4%7

sergey [27]

Answer:

$x = - 12$

C.E.: x =/= -4

Step-by-step explanation:

$\frac{x}{x + 4} = \frac{4}{x + 4} + 2 \\ \frac{x}{x + 4} = \frac{4 + 2x + 8}{x + 4} \\ x = 4 + 2x + 8 \\ - x = 12 \\ x = - 12$

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2 years ago