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mojhsa [17]
3 years ago
5

18........................

Mathematics
2 answers:
sasho [114]3 years ago
5 0

Answer:

d. 13x^{\frac{5}{2}}

Step-by-step explanation:

The given expression is

\sqrt{169x^5}

We can rewrite this as

\sqrt{169}\times \sqrt{x^5}

We rewrite as a rational exponent to obtain;

(13^2)^{\frac{1}{2}}\times (x^5)^{\frac{1}{2}}

Recall that;

(a^m)^n=a^{mn}

13^{(2\times \frac{1}{2})}\times (x)^{5\times \frac{1}{2}}

13^1 (x)^{\frac{5}{2}}

The correct choice is D

13x^{\frac{5}{2}}

Alex787 [66]3 years ago
4 0

Answer:

D

Step-by-step explanation:

We will use the radical property  \sqrt{a*b} =\sqrt{a} \sqrt{b}  to simplify this.

The problem is  \sqrt{169*x^5}

We can simplify this as:

\sqrt{169*x^5} \\=\sqrt{169} \sqrt{x^5}

Now we can use the property of radicals,  \sqrt[n]{x^a} =x^{\frac{a}{n}}  , to write as:

\sqrt{169} \sqrt{x^5} \\13*x^{\frac{5}{2}}

D is right answer.

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goblinko [34]

Answer:

<u>The missing angle measures also 110°</u>

Step-by-step explanation:

Let's recall that If the transversal cuts across parallel lines (apparently, this particular case) then those alternate exterior angles have the same measure (.∠ 110° and ∠?) So in the figure given, the two alternate exterior angles measure the same.

<u>The missing angle measures also 110°</u>

4 0
3 years ago
Draw an area model to solve 549÷ 3
Allisa [31]

Answer:

183

Step-by-step explanation:

i cant draw an actual model but 549/3 = 183

7 0
2 years ago
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rule t
MissTica

Answer:

A) 99.7% of people have an IQ between 64 and 136.

B) 5% of people have an IQ score less than 76 or greater than 124.

C) 16% of people have an IQ score greater than 112.

Step-by-step explanation:

The Empirical Rule tells us that, in a normal or 'bell-shaped' distribution, 68% of the data is one standard deviation from the mean, 95% of the data is two standard deviations from the mean, and 99.7% of the data is three standard deviations from the mean.

A) 64 and 136 are 3 standard deviations away from the mean, so 99.7% of people have an IQ between 64 and 136.

B) 76 and 124 are 2 standard devations away from the mean, but the answer is asking what percentage is not between them. 100% - 95% gives us 5%.

C) 112 is one standard deviation away from the mean. If we want to find the percentage greater, then we can do 100% - 50% (as 112 is to the left of the mean), then we can take half of 68 to get 34%, and after subtracting 50% and 34% from the 100%, we get 16%.

8 0
3 years ago
Can someone please help?
goldfiish [28.3K]

Answer:

a.   max. 25c. min.13c

b.  2:00

Step-by-step explanation:

6 0
2 years ago
3. A website allows users to download individual songs or whole albums.
victus00 [196]

Answer:

Each song costs $2 and each album costs $10.

Step-by-step explanation:

Since a website allows users to download individual songs or whole albums, and all songs cost the same price to download and all albums cost the same price to download, and Karim pays $ 30 to download 5 songs and 2 albums while Kimberlyn pays $ 26 for download 3 songs and 2 albums, to determine what is the cost to download 1 song and the cost to download 1 album, the following calculations must be made:

5X + 2Y = 30

3X + 2Y = 26

(30 - 26) / (5 - 3) = X

4/2 = X

2 = X

Therefore, each song has a cost of $ 2.

Thus, to know the cost of each album (knowing that both downloaded the same amount, that is, 2), the following calculation must be performed:

5x2 + 2Y = 30

10 + 2Y = 30

2Y = 30 - 10

2Y = 20

Y = 20/2

Y = 10

Therefore, each album has a cost of $ 10.

5 0
2 years ago
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