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Ksivusya [100]
3 years ago
13

4. A company makes two kinds of trading cards.

Mathematics
1 answer:
ziro4ka [17]3 years ago
4 0
Value + value = 14 dollars
0.65x + 10-0.40x = 14
0.25x = 4
x = 16
25-x =9
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Is number 3 correct and please explain ?
Paraphin [41]
Your correct, +1 would give you one point on y line then go down and over to get your slope, so yes you are correct, good job.
5 0
3 years ago
The ratio of red cars to blue cars in a parking lot was 5 : 3. If there were 40 red cars how many blue cars were there?
andreyandreev [35.5K]
Every 5 red cars there are 3 blue cars
so if there are 40 red cars there are going to be  24 blue cars
8 0
3 years ago
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If the radius of a circle is increased by 100%, then the area is increased by:
shtirl [24]
A_1=\pi r^2\\\\R=2r\ then\ A_2=\pi R^2\to A_2=\pi(2r)^2=4\pi r^2\\\\A_2-A_1=4\pi r^2-\pi r^2=3\pi r^2=3A_1\\\\3=300\%\\\\Answer:(C).
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3 years ago
NO LINKS!!!
matrenka [14]

Factor x^5 - x to get x(x^4 - 1) = x(x^2-1)(x^2+1) = x(x-1)(x+1)(x^2+1)

We see that x = 0, x = 1 and  x = -1 are the real number roots or x intercepts. Ignore the complex or imaginary roots. Unfortunately, the graph shows the x intercepts as -2, 0 and 2 which don't match up.

So there's no way that the given graph matches with f(x) = x^5-x.

-------------------

As more proof, let's consider the end behavior.

As x gets really large toward positive infinity, x^5 will do the same and so will x^5-x. Overall, f(x) will head off to positive infinity. Visually, moving to the right will have the graph move upward forever. This is the complete opposite of what is shown on the graph.

Likewise, the left endpoint should be aimed down instead of up. This is because x^5-x will approach negative infinity as x heads to the left.

In short, the graph shows a "rises to the left, falls to the right" end behavior. It should show a "falls to the left, rises to the right" pattern if we wanted to have a chance at matching it with x^5-x. Keep in mind that matching end behavior isn't enough to get a 100% match; however, having this contradictory end behavior is proof we can rule out a match.

I recommend using Desmos, GeoGebra, or whatever graphing program you prefer to plot out y = x^5-x. You'll get a bettter idea of what's happening.

8 0
2 years ago
Read 2 more answers
What is the chance you'll roll this FNC (fair # cube) and it will land on a number less than 5?
zlopas [31]
You’re answer is A because there are only 4 numbers below 5 so it’ll be 4/7
3 0
3 years ago
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