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3 years ago

Question is in attached picture below

Mathematics

1 answer:

valina [46]3 years ago

3 0

Answer:

My answer may not be accurate, but try (-4, 2)

I recommend using Khan Academy if you still don't understand the concept. (no shame btw)

Step-by-step explanation:

Here is a thorough explanation.

Interval notation is a way of writing subsets of the real number line . A closed interval is one that includes its endpoints: for example, the set {x | −3≤x≤1} . To write this interval in interval notation, we use closed brackets [ ]: [−3,1]

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If Logx (1 / 8) = - 3 / 2, then x is equal to<br> A. - 4<br> B. 4<br> C. 1 / 4

Fudgin [204]

Answer:

B. 4

Step-by-step explanation:

Given :

$log_x(\frac{1}{8})=-\frac{3}{2}$

The logarithm function can be converted to an exponential function as

$[\log_ab=c]$ can be expressed as $[a^c=b]$

Similarly for the given expression

$log_x(\frac{1}{8})=-\frac{3}{2}$

We can write,

$x^{-\frac{3}{2}}=\frac{1}{8}$

Using property of negative exponents $[a^{-b}=\frac{1}{a^b}]$

$\frac{1}{x^{\frac{3}{2}}}=\frac{1}{8}$

So we can write that as:

$x^{\frac{3}{2}}=8$

Writing the exponents in radical form as $a^{\frac{b}{c}}=(\sqrt[c]{a})^b$

$(\sqrt{x})^3=8$

Taking cube root both sides to remove the cube.

$\sqrt[3]{(\sqrt{x})^3}=\sqrt[3]{8}$

$\sqrt x=2$

Squaring both sides to remove square root.

$(\sqrt x)^2=2^2$

∴ $x=4$

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4 years ago

The store owner tells the girls that half of the DVDS are out on loan. How many DVDS does the store own in total?

patriot [66]

Step-by-step explanation:

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2 years ago

Anna enlarged a photo to hang over her fireplace. The new Bh photo is 47.2 inches wide. If the original photo was 3.6 inches tal

blsea [12.9K]

Answer:

28.8 inches tall

Step-by-step explanation:

47.2/5.9 = 8

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Dividing the corresponding widths of the photos can help you find the scale factor. After finding the scale factor of 8 you can multiply the height to find the new scaled height of 28.8.

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3 years ago

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Answer:

Step-by-step explanation:

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C The function is not liner

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4 years ago

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kicyunya [14]

The reason why the advertisement misleading is: Number of size which is 20 is a very sample size to make this conclusion valid.

<h3>What is advertisement?</h3>

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The sample size which is 20 is a very small sample size to make this conclusion valid.

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3 years ago