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3 years ago

Which equation is the inverse of 2(x - 2)^3=8(7+y)

Mathematics

2 answers:

Kipish [7]3 years ago

7 0

Answer:

y is inverse: 2 ± $\sqrt{28+ 4x}$ .

Step-by-step explanation:

Given: 2(x - 2)²=8(7+y).

To find: Find inverse.

Solution : We have given

2(x - 2)²=8(7+y).

Step 1: inter change the x and y.

2(y - 2)²=8(7+x).

Step 2:

Solve for y

On dividing both sides by 2

(y - 2)² = 4 (7+x).

Distributes 4 over ( 7 + x)

(y - 2)² = 28 + 4x

Taking square root both sides.

$\sqrt{(y-2)^{2} } = ±\sqrt{28+ 4x}$ .

y - 2 = ± $\sqrt{28+ 4x}$ .

On adding both sides by 2

y = + 2 ± $\sqrt{28+ 4x}$ .

Therefore, y is inverse : 2 ± $\sqrt{28+ 4x}$ .

irina1246 [14]3 years ago

6 0

Answer:

$\large\boxed{y=2\pm\sqrt{28+4x}}$

Step-by-step explanation:

$2(x-2)^2=8(7+y)\\\\\text{exchange x to y, and vice versa:}\\\\2(y-2)^2=8(7+x)\\\\\text{solve for y:}\\\\2(y-2)^2=(8)(7)+(8)(x)\\\\2(y-2)^2=56+8x\qquad\text{divide both sides by 2}\\\\(y-2)^2=28+4x\iff y-2=\pm\sqrt{28+4x}\qquad\text{add 2 to both sides}\\\\y=2\pm\sqrt{28+4x}$

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hram777 [196]

Answer:

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Step-by-step explanation:

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3 years ago

The diagram represents the shape and dimensions of Kayla's garden. A special fertilizer is used for the vegetable garden. Each b

Serjik [45]

Answer:

B. 18 bags

Step-by-step explanation:

First you need to determine the area of the vegetable garden. The vegetable garden is a rectangle with the following dimensions:

L = 24 ft

W = 9 ft

The Formula for the area of a rectangle is:

$A = L\times W$

So let's solve it:

$A = L\timesW\\A = 24 ft\times9ft\\A= 216ft^{2}$

With that, we can figure out how many bags of fertilizer would be needed by dividing the area of the vegetable garden by how much one bag of fertilizer covers:

$\dfrac{214ft^2}{12ft^2/bag}=18\;bags$