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ss7ja [257]
3 years ago
15

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

8 0
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]

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Step-by-step explanation:

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3 0
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

8(3.6) = 28.8

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.

4 0
3 years ago
An event management company purchases a new van. The value of the van, x years after the purchase, is shown in the table. here i
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Answer:

D

Step-by-step explanation:

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B is not right as the function is not liner

C The function is not liner

That leaves D!

hope this helps!

4 0
4 years ago
An advertisement for a lawn service claims their fertilizer treatment kills weeds in half the
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>

Advertisement can be defined as the process of creating awareness about a product so as to increase sales.

Based on the given scenario the advertisement is misleading based on the following reasons:

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

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7 0
3 years ago
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