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andrey2020 [161]
3 years ago
9

DJ Davon is making a playlist for a website; he is trying to decide what 15 songs to play and in what order they should be playe

d. If he has his choices narrowed down to 12 hip-hop, 9 rock, and 6 blues songs, and he wants to play an equal number of hip-hop, rock, and blues songs, how many different playlists are possible? Express your answer in scientific notation rounding to the hundredths place.
Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0

Answer:

.

Step-by-step explanation:

bc it is and im right haha

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Michael and Imani go out to eat for lunch. If their food and beverages cost $25.30 and there is an 8% meals tax, how much is the
blondinia [14]

Answer:

The bill total is $27.32

Step-by-step explanation:

how to figure out tax amount: 25.30 x .08 = $2.024

add tax to cost of meal : 25.30 + 2.024 = $27.32

5 0
3 years ago
Write the converse of this statement.<br><br> If 3 - 2x = 13, then x = -5.
stiv31 [10]
Basically your just swapping there positions like so:
if x=-5, then 3-2x=13
Hope this helps! :)
5 0
3 years ago
Write a polynomial function f of least degree that has a leading coefficient of 1 and the given zeros -4,-2,5. write the functio
OLga [1]

Answer:

Step-by-step explanation:

This is a third degree polynomial since we have 3 zeros.  We find these zeros by factoring the given polynomial.  The zeros of a polynomial are where the graph of the function goes through the x-axis (where y = 0).  If x = -4, the factor that gives us this value is (x + 4) = 0 and solving that for x, we get x = -4.  If x = -2, the factor that gives us that value is (x + 2) = 0 and solving that for x, we get x = -2.  Same for the 5.  The way we find the polynomial that gave us these zeros is to go backwards from the factors and FOIL them out.  That means that we need to find the product of

(x + 4)(x + 2)(x - 5).  Do the first 2 terms, then multiply in the third.

(x+4)(x+2)=x^2+2x+4x+8, which simplifies to

x^2+6x+8

No we multiply in the final factor of (x - 5):

(x^2+6x+8)(x-5)=x^3+6x^2+8x-5x^2-30x-40 which simplifies to

f(x)=x^3+x^2-22x-40

If you are aware of the method for factoring higher degree polymomials, which is to use the Rational Root Theorem and synthetic division, you will see that this factors to x = -4, -2, 5.  If you know how to use your calculator, you will find the same zeros in your solving polynomials function in your apps.

3 0
3 years ago
What is the answer to this algebra problem
Sergeu [11.5K]
The problem said : -10,8 =-2 and -15,9=-6

5 0
3 years ago
Read 2 more answers
The question is on the attached image :)
olga_2 [115]
The mean can be found by adding the two numbers and dividing by 2

let the second number be y

(x + y)/2 = 1/2x + 1

solve for y

multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2

ANSWER: the second number is 2

6 0
2 years ago
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