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3 years ago

Use the difference of squares identity to write this polynomial in factored form 9x²-49

1 answer:

7 0

$\bf 9x^2-49\implies 3^2x^2-7^2\implies \stackrel{\stackrel{\textit{difference of}}{\textit{squares}}}{(3x)^2-7^2}\implies (3x-7)(3x+7)$

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The number 6231 is divisible by 3.

Oliga [24]

Answer:

true

Step-by-step explanation:

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3 years ago

Drag and drop the constant of proportionality into the box to match the table. If the table is not proportional, drag and drop "

podryga [215]

Option B: 3 is the right answer

Step-by-step explanation:

If y varies directly as x, it can be expressed as:

y ∝ x

$y= kx$

If the values in table are directly proportional then the value of k should be same for all pairs.

$k = \frac{y}{x}\\k = \frac{6}{2} = \frac{9}{3} = \frac{12}{4} = \frac{15}{5} = 3$

the table is directly proportional and the value of k is 3

Hence,

Option B: 3 is the right answer

Keywords: Proportion, variation

Learn more about proportion at:

#LearnwithBrainly

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il63 [147K]

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3 years ago

Read 2 more answers

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Tanya [424]

Answer:

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Step-by-step explanation:

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4 years ago

60% of what number is 75

kramer

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3 years ago

Use the difference of squares identity to write this polynomial in factored form 9x²-49​

Use the difference of squares identity to write this polynomial in factored form 9x²-49