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morpeh [17]
3 years ago
14

Chen has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Chen's Jumble has 4 clas

sical songs,3 rock songs,and 2 rap songs on it.Chen is going to listen to 360 songs.What is the best prediction for the number of classical songs that Chen will listen to?
Mathematics
1 answer:
pochemuha3 years ago
6 0
About 10 songs because if you add up all ten numbers of all the songs then you divide, then you divide again you will get 10 songs
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Plssss help quick i need it for sum important
Vanyuwa [196]

(a) The product of (2x-4)\ and\ (3x^2-x+4)  is calculated to be =6x^3-14x^2+12x-16

(b)The product of (2x-4) \ and\ (3x^2-x+4)\ is not equal to the product of  (4x-2)\ and\ (3x^2-x+4)

<u>Step-by-step explanation:</u>

<u>(a)</u>

(2x-4)(3x^2-x+4)\\\\=(2x.3x^2)+(2x.-x)+(2x.4)+(-4.3x^2)+(-4.-x)+(-4.4)\\\\=6x^3-2x^2+8x-12x^2+4x-16\\\\=6x^3-14x^2+12x-16

b)

(4x-2)(3x^2-x+4)\\\\=(4x.3x^2)+(4x.-x)+(4x.4)+(-2.3x^2)+(-2.-x)+(-2.4)\\\\=12x^3-4x^2+16x-6x^2+2x-8\\\\=12x^3-10x^2+18x-8

The product of (2x-4) \ and\ (3x^2-x+4)\ is not equal to the product of  (4x-2)\ and\ (3x^2-x+4)

7 0
3 years ago
Please answer them. 25 points.
diamong [38]

Step-by-step explanation:

<u>Initial value is the y-intercept:</u>

  • b = 1200

<u>Rate of change is the difference in the charge amount per year:</u>

  • m = (1350 - 1200) / (8 - 5) = 150 / 3 = 50

<u>The equation would be:</u>

  • y = 50x + 1200
8 0
3 years ago
Read 2 more answers
Find the sum of the following geometric sequences. d) 3 terms a= 16 r=3/4​
kodGreya [7K]

Answer:

S₃ = 37

Step-by-step explanation:

given a₁ = 16 and r = \frac{3}{4} , then

a₂ = a₁ × \frac{3}{4} = 16 × \frac{3}{4} = 12

a₃ = a₂ × \frac{3}{4} = 12 × \frac{3}{4} = 9

then

S₃ = a₁ + a₂ + a₃ = 16 + 12 + 9 = 37

7 0
2 years ago
Which inequality represents the graph
11Alexandr11 [23.1K]

Answer:

z ≥ -10

Step-by-step explanation:

When the circle is filled it means the direction its going (less than or greater than) or equal to in this case the line is going farther than -10 so its greater than or equal to -10. Z would be your variable so its z ≥ -10

7 0
3 years ago
The quadratic function f left parenthesis x right parenthesis equals 740.1 x squared minus 3109.2 x plus 945 approximates the gr
Artist 52 [7]

Answer:

(a) 85,602,300

(b) 352,621,800

Step-by-step explanation:

f(x) = 740.1x^2 - 3109.2x+945

(a) In 1998, <em>x</em> = 1998 - 1985 = 13

f(13) = 740.1(13)^2 - 3109.2(13)+945 = 85602.3

The number of subscribers in 1998 = 85602.3 × 1000 = 85,602,300

(b) In 2009, <em>x</em> = 2009 - 1985 = 24

f(24) = 740.1(24)^2 - 3109.2(24)+945 = 352621.8

The expected number of subscribers in 2009 = 352621.8 × 1000 = 352,621,800

3 0
3 years ago
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