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3 years ago

15

The area of a rectangle is represented with the expression (18x-12) inches squared. The width of the rectangle is 6 inches. Writ

e an expression that represents the length of the rectangle.

1 answer:

Rudik [331]3 years ago

5 0

Are equation for a rectangle is area = (width x length)

(18x - 12) = 6 x length
length = (18x - 12) / 6
length = 3x - 2

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When 5 is added to 2 times a number, the result is 45. find the number.

WINSTONCH [101]

A.

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3 years ago

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Answer:

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Step-by-step explanation:

1 box = $12

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Read 2 more answers

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adell [148]

Answer:

The answer is 622,100

Step-by-step explanation:

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6 0

3 years ago

Rewrite in simplest rational exponent form √x • 4√x. Show each step of your process.

Lisa [10]

$First\ step:you\ must\ have\ the\ domain\ (D)\\x\geq0\to D:x\in[0;\ \infty)\\\\Second\ step:use\ \sqrt{a}\cdot\sqrt{a}=\left(\sqrt{a}\right)^2=a\ for\ a\geq0\\\\Solution:\\\sqrt{x}\cdot4\sqrt{x}=4(\sqrt{x})^2=\huge\boxed{4x}$

$or\ other\ method\\\\First\ step:\ use\ \sqrt{x}=x^{\frac{1}{2}}\\\\\sqrt{x}\cdot4\sqrt{x}=x^\frac{1}{2}\cdot4x^{\frac{1}{2}}\\\\Second\ step:\ use\ a^n\cdot a^m=a^{n+m}\\\\x^\frac{1}{2}\cdot4x^{\frac{1}{2}}=4\cdot x^\frac{1}{2}\cdot x^{\frac{1}{2}}=4x^{\frac{1}{2}+\frac{1}{2}}=4x^1=\huge\boxed{4x}$

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3 years ago