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2 years ago

10

Please please help me

1 answer:

miskamm [114]2 years ago

4 0

Answer:

41

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

$now \: \: x = 4$

$3 {(4)}^{2} - 2(4) + 1$

$3(16) - 8 + 1$

$48 - 8 + 1 = 41$

41 is the answer

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2 years ago

Which is the simplified form of the expression ((2 Superscript negative 2 Baseline) (3 Superscript 4 Baseline)) Superscript nega

AlekseyPX

Answer:

The option "StartFraction 1 Over 3 Superscript 8" is correct

That is $\frac{1}{3^8}$ is correct answer

Therefore $[(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2=\frac{1}{3^8}$

Step-by-step explanation:

Given expression is ((2 Superscript negative 2 Baseline) (3 Superscript 4 Baseline)) Superscript negative 3 Baseline times ((2 Superscript negative 3 Baseline) (3 squared)) squared

The given expression can be written as

$[(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2$

To find the simplified form of the given expression :

$[(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2$

$=(2^{-2})^{-3}(3^4)^{-3}\times (2^{-3})^2(3^2)^2$ ( using the property $(ab)^m=a^m.b^m$ )

$=(2^6)(3^{-12})\times (2^{-6})(3^4)$ ( using the property $(a^m)^n=a^{mn}$

$=(2^6)(2^{-6})(3^{-12})(3^4)$ ( combining the like powers )

$=2^{6-6}3^{-12+4}$ ( using the property $a^m.a^n=a^{m+n}$ )

$=2^03^{-8}$

$=\frac{1}{3^8}$ ( using the property $a^{-m}=\frac{1}{a^m}$ )

Therefore $[(2^{-2})(3^4)]^{-3}\times [(2^{-3})(3^2)]^2=\frac{1}{3^8}$

Therefore option "StartFraction 1 Over 3 Superscript 8" is correct

That is $\frac{1}{3^8}$ is correct answer

6 0

3 years ago

Read 2 more answers

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marishachu [46]

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Hope this helps!

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3 years ago

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3 years ago

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SashulF [63]

Answer:

$\displaystyle3\frac{3}{4}$

Step-by-step explanation:

Hi there!

$4\displaystyle\frac{11}{16} \div1\frac{1}{4}$

Change mixed numbers to improper fractions:

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Dividing by a fraction is the same as multiplying by its reciprocal:

$= \displaystyle\frac{75}{16} *\frac{4}{5}$

Reduce:

$= \displaystyle\frac{75}{4} *\frac{1}{5}$

$= \displaystyle\frac{15}{4} *\frac{1}{1}$

$= \displaystyle\frac{15}{4}$

Change improper fraction into mixed number:

$= \displaystyle3\frac{3}{4}$

I hope this helps!

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3 years ago

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