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3 years ago

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t*s) (x)?

Mathematics

1 answer:

Reika [66]3 years ago

4 0

Answer:

Multiply s(x) function and t(x) function together.

(x-7)(4x^2-x+3) = 4x^3-28x^2-x^2+7x+3x-21 = 4x^3-29x^2+10x-21

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3 years ago

Solve <br>In 2x + In 2=0

irakobra [83]

Solving $ln(2x)+ln(2)=0$ we get, $x=\frac{1}{4}$

Step-by-step explanation:

We need to solve: $ln(2x)+ln(2)=0$

Solving:

$ln(2x)+ln(2)=0$

Adding -ln(2) on both sides:

$ln(2x)+ln(2)-ln(2)=0-ln(2)$

$ln(2x)=-ln(2)$

Using logarithmic rule: if $log_a b =c\,\,then\,\, b=a^c$

So,

$2x=e^{-ln(2)}$

Simplifying:

$2x=(e^{ln(2)})^{-1}\\e^{ln(2)}=2\\2x=(2)^{-1}\\2x=\frac{1}{2} \\x=\frac{1}{2x2}\\x=\frac{1}{4}$

So, Solving $ln(2x)+ln(2)=0$ we get, $x=\frac{1}{4}$

Keywords: Logarithms

Learn more about Logarithms at:

#learnwithBrainly

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3 years ago

Describe how a statistical question yields an answer with variability. Give a example.

solniwko [45]

Statistics is not an exact science, meaning that with any answer, there will be variance. This is because the sample size used to obtain values is always smaller than the population being studied.

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Answers to page 691-693 #1-30

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2 years ago

A pharmacist put 3.84 ounces of vitamin pills into bottles. She put 0.032 ounce

Alecsey [184]

Answer:

0.032

Step-by-step explanation:

Divide each term by 0.032 and simplify

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2 years ago

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