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BlackZzzverrR [31]
3 years ago
8

[5x+6]*{(3%*5.0x)*5(7*8c)}

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
3 0

Answer:

210x²c+252xc

Step-by-step explanation:

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5. Original price of concert tickets:$100 . Discount: 21%
lutik1710 [3]

Answer:

Concert ticket now costs $79.

Step-by-step explanation:

21% is being removed from the original cost, in this case, that's $21.  100-21=79. Hope this helps ;)

4 0
3 years ago
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Everythings in the pic!
yanalaym [24]

Answer:

  • D. 32 times; 5/4*40 = 32

Step-by-step explanation:

It is expected the spinner to land on Red 1/5 times.

<u>If the spinner is spun 40 times, then it should land on Red:</u>

  • 1/5*40 = 8 times

<u>And it should not land on red:</u>

  • (1 - 1/5)*40 = 4/5*40 = 32 times

Correct choice is D

3 0
3 years ago
Is the function below below linear or non-linear y=-8x^2+9
Mariulka [41]
Nonlinear. it is a quadratic equation therefore yields a parabola
5 0
3 years ago
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Solve the equation x^6+3x^5+x^4-5x^3-6x^2-2x=0 in the real number system
koban [17]
First, pull out a factor of x.

x^6+3x^5+x^4-5x^3-6x^2-2x=x(x^5+3x^4+x^3-5x^2-6x-2)

Notice that when x=-1 (which you can arrive at via the rational root theorem), you have

(-1)^5+3(-1)^4+(-1)^3-5(-1)^2-6(-1)-2=-1+3-1-5+6-2=0

which means you can pull out a factor of x+1. Upon dividing you get

\dfrac{x^5+3x^4+x^3-5x^2-6x-2}{x+1}=x^4+2x^3-x^2-4x-2

The rational root theorem will come in handy again, suggesting that x=-1 appears a second time as a root, which means

\dfrac{x^4+2x^3-x^2-4x-2}{x+1}=x^3+x^2-2x-2

Now this is more readily factored without having to resort to the rational root theorem. You have

x^3+x^2-2x-2=x^2(x+1)-2(x+1)=(x^2-2)(x+1)

so in fact, x=-1 shows up as a root for a third time.

So, you have

x^6+3x^5+x^4-5x^3-6x^2-2x=x(x+1)^3(x^2-2)=0

Two roots are obvious, x=0 and x=-1 (with multiplicity 3). The remaining two are given by

x^2-2=0\implies x^2=2\implies x=\pm\sqrt2
3 0
4 years ago
Giving Brainliest! Consider the following data set: 3, 4, 6, 7, 9, 9, 11.
nevsk [136]
The mean is 7 and the median is 6.5
7 0
3 years ago
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