What does 4r+6 represent in the expression

Mathematics

1 answer:

solniwko [45]4 years ago

6 0

Answer:

4 times a variable (unknown number) plus 6

Step-by-step explanation:

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True or false? To begin an indirect proof, you assume the converse of wha

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Answer: B. False

Step-by-step explanation:

You assume the inverse of what you intend to prove is true, not the converse.

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2 years ago

Suppose a teacher finds that the

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Answer:

If a student with 2 absences got a score of 12, we can affirm that the student got 6 points for every absence she or he had.

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<u>The correct answer is 18 points.</u>

Step-by-step explanation:

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3 years ago

Read 2 more answers

Can I get help answering this question? It's a derivatives question, further info in the attachment.

Nadusha1986 [10]

$\bf f(x)=|3+9x|\implies f(x)=\sqrt{(3+9x)^2}\implies f(x)=[(3+9x)^2]^{\frac{1}{2}}
\\\\\\
\cfrac{dy}{dx}=\stackrel{chain~rule}{\cfrac{1}{2}[(3+9x)^2]^{-\frac{1}{2}}\cdot 2(3+9x)\cdot 9}\implies \cfrac{dy}{dx}=\cfrac{9(3+9x)}{[(3+9x)^2]^{\frac{1}{2}}}
\\\\\\
\cfrac{dy}{dx}=\cfrac{27+81x}{|3+9x|}\\\\
-------------------------------$

$\bf \textit{left-hand derivative at }x=-\frac{3}{9}\implies \cfrac{27+81x}{-(3+9x)}
\\\\\\
\cfrac{27+81\left( -\frac{3}{9} \right)}{-3-9\left( -\frac{3}{9} \right)}\implies \cfrac{27-27}{-3+3}\implies \stackrel{unde fined}{\cfrac{0}{0}}\\\\
-------------------------------\\\\
\textit{right-hand derivative at }x=-\frac{3}{9}\implies \cfrac{27+81x}{+(3+9x)}
\\\\\\
\cfrac{27+81\left( -\frac{3}{9} \right)}{3+9\left( -\frac{3}{9} \right)}\implies \cfrac{27-27}{3-3}\implies \stackrel{unde fined}{\cfrac{0}{0}}$

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3 years ago

Write the numerical expression for the product of 8 and the sum of 9 and 11.3. Then evaluate it.

Klio2033 [76]

Answer:

162.4

Step-by-step explanation:

To write the numerical expression for the product of 8 and the sum of 9 and 11.3 we need to follow these steps:

Sum of 9 and 11.3 is given as follows:

$(9+11.3)$