2 years ago

Why can you use the constant of proportionality with any representation?

Mathematics

1 answer:

pantera1 [17]2 years ago

3 0

Answer:

The number k is called the constant of proportionality. One important way of thinking about this constant k is that it tells us how much y increases by if we increase x by exactly 1. to express that y is directly proportional to x.

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Identify the number of terms in the expression 9m+7

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The number of terms in the expression is 2

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A $75 fund is available for a holiday party. If 75% of the available money is spent for food and beverages, how much is left for

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The length of a rectangular flower garden is 9 feet and it’s width is 5 feet how many feet of fencing will be needed

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Use the simple perimeter formula.
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3 years ago

Help! I don't understand this.

OleMash [197]

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2 years ago

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3^x+2=8^x-1 Solve for x.

zubka84 [21]

I assume the equation is supposed to be

$3^{x+2}=8^{x-1}$

Then we can write

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Take the logarithm of base 3/8 on both sides:

$\log_{3/8}\left(\dfrac38\right)^x=\log_{3/8}\dfrac1{72}$

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$\implies x=-\log_{3/8}72$

- - -

If the equation is actually $3^x+2=8^x-1$ , I'm afraid it cannot be solved exactly.

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3 years ago