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Mnenie [13.5K]
3 years ago
5

Can someone please solve this please?!

Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

56

Step-by-step explanation:

This problem can be solved b using a combination. We're using a combination for this because the order in which you would pick the songs doesn't matter. To solve, we would plug in the number of songs we want to download, in this case 8, into the n value of the combination. Then we would plug in the number of songs that we can pick, in this case 3, in the r value of the combination. Solve the combination and we get 56.

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Express the following as powers of 64: (e) 1 (f) 1/64 (g) 1/8 (h) 1/2 (I) 1/64
____ [38]

Answer:

(e) 1 =64⁰

(f) 1/64 = 64⁻¹ negative one power

(g) 1/8 = 64⁻¹/² negative one half power

(h) 1/2 = 64⁻1/6 negative one/sixth power

(I) 1/64 same as (f) ??

Step-by-step explanation:

6 0
3 years ago
Listed below are the measured radiation emissions​ (in W/kg) corresponding to cell​ phones: A,​ B, C,​ D, E,​ F, G,​ H, I,​ J, a
Sophie [7]

Answer: a. Mean = 0.696364

b. Median = 0.64

c. Midrange = 0.895

d. There is no Mode

e. 2. The maximun data value is the most relevant statistic, because it is closest to the limit of 1.6W/kg and that cell should be avoided.

Step-by-step explanation:

a) Mean is an average number of the data set, calculated by the sum of all the value divided by the quantity of the set:

mean = \frac{0.75+0.22+1.23+0.64+0.54+0.24+0.81+1.57+0.29+1.02+0.35}{11}

mean = 0.696364

b) Median is the middle number in the list of numbers. In this case, since there are 11 elements in the set, the middle number is:

sorted numbers of the data set:

0.22 0.24 0.29 0.35 0.54 0.64 0.75 0.81 1.02 1.23 1.57

median = 0.64

c) Midrange is another type of average number. It is calculated as:

midrange = \frac{high+low}{2}

midrange = \frac{1.57+0.22}{2}

midrange = 0.895

d) Mode is the number that appears most often in the list of numbers. For this data set, each number appears only one time, so there is no mode.

Mode = 0

e) According to the question, cell phone radiation is dangerous when it is higher than 1.6W/kg. The cell phone with the maximum data value (1.57 W/kg) should be avoided, since it is too close to the limit described.

So, the measures of center are not the most important statistic to be observed but the maximum data value.

7 0
3 years ago
The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.
laila [671]

Im 75% sure the answer is -3.

5 0
3 years ago
Read 2 more answers
A school has 600 students. If 5%<br> are absent, how many students are<br> absent?
qwelly [4]

Answer:

30 students are absent.

Step-by-step explanation:

5%=0.05

0.05*600=30

8 0
3 years ago
Read 2 more answers
Find the circumference of a circle if the area is 300 square centimeters.
mr Goodwill [35]

So the formula for a circle is Pie * r^2

If you divide 300 by pie and then Square root it you would get your radius

And once you have the radius you would use the equation of 2pie * r to find the circumfrence.

Answer is 61.38

Hope this helps!



4 0
3 years ago
Read 2 more answers
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