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Snezhnost [94]
3 years ago
14

Is -3/5 rational or irrational???????

Mathematics
2 answers:
GenaCL600 [577]3 years ago
5 0
-3/5 is rational number
daser333 [38]3 years ago
3 0

Answer: Rational

Step-by-step explanation: To determine whether -3/5 is rational or irrational, remember that all fractions positive or negative are rational numbers.

Therefore, -3/5 is a rational number.

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hi, if your looking for extra points (50+) and brainiest here is ur chance, answer this question correctly plz
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Answer:

i will take company (a) because they are giving in less rate

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3 years ago
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A campground consists of 8 square campsites arranged in a line along a beach. The distance from the edge of a campsite to the wa
Sedaia [141]
The width of one campsite is 30.5 yards.

The campsite area has a 1220 square yards and a width of 5 yards.
If we divide 1220 by 5, we see that the total length of the campgrounds must be 244 yards.

Now, divide 244 by 8 and you will get that each campground is 30.5 yards wide.

(Unless, you forgot to include the distance of the campground with the given width, that would change our answer)
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3 years ago
A student claims that 2i is the only imaginary root of a polynomial equation that has real coefficients. Explain the student's m
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Answer:

The Fundamental Theorem of Algebra assures that any polynomial  f(x)=0 whose degree is n ≥1 has at least one Real or Imaginary root. So by the Theorem we have infinitely solutions, including imaginary roots ≠ 2i

Step-by-step explanation:

1) This claim is mistaken.

2) The Fundamental Theorem of Algebra assures that any polynomial  f(x)=0 whose degree is n ≥1 has at least one Real or Imaginary root. So by the Theorem we have infinitely solutions, including imaginary roots ≠ 2i with real coefficients.

a_{0}x^{n}+a_{1}x^{2}+....a_{1}x+a_{0}

For example:

3) Every time a polynomial equation, like a quadratic equation which is an univariate polynomial one, has its discriminant following this rule:

\Delta < 0\\b^{2}-4*a*c

We'll have <em>n </em>different complex roots, not necessarily 2i.

For example:

Taking 3 polynomial equations with real coefficients, with

\Delta < 0

-4x^2-x-2=0 \Rightarrow S=\left \{ x'=-\frac{1}{8}-i\frac{\sqrt{31}}{8},\:x''=-\frac{1}{8}+i\frac{\sqrt{31}}{8} \right \}\\-x^2-x-8=0 \Rightarrow S=\left\{\quad x'=-\frac{1}{2}-i\frac{\sqrt{31}}{2},\:x''=-\frac{1}{2}+i\frac{\sqrt{31}}{2} \right \}\\x^2-x+30=0\Rightarrow S=\left \{ x'=\frac{1}{2}+i\frac{\sqrt{119}}{2},\:x''=\frac{1}{2}-i\frac{\sqrt{119}}{2} \right \}\\(...)

2.2) For other Polynomial equations with real coefficients we can see other complex roots ≠ 2i. In this one we have also -2i

x^5\:-\:x^4\:+\:x^3\:-\:x^2\:-\:12x\:+\:12=0 \Rightarrow S=\left \{ x_{1}=1,\:x_{2}=-\sqrt{3},\:x_{3}=\sqrt{3},\:x_{4}=2i,\:x_{5}=-2i \right \}\\

4 0
3 years ago
Solve for x in the diagram below.<br> 3x<br> 75°<br> T =
leva [86]
Answer:
3x+75=180
3x=180-75
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x=35
7 0
4 years ago
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the ratio of blue marbles to white marbles in a bag is 4 to 5 . at this rate, how many blue marbles are there if there are 15 wh
Aleksandr-060686 [28]
4:5 = x : 15
let x be blue marbles
4(15) = 5x
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therefore 12 blue marbles
3 0
4 years ago
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