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olga_2 [115]
3 years ago
14

Find the roots x^2-13x+30=0 (numbers only)

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
3 0

Answer:

Find the roots of x^2-13x+30=0 by solving for x

x= 10,3

Step-by-step explanation:

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What is the domain of this relation?
Lera25 [3.4K]

Answer:

The domain numbers are 4,-3,3,4

Step-by-step explanation:

The nubers from the x-axis are the domain numbers

I hope it helps:)

5 0
3 years ago
PLEASE HELP ASAP STUDY GUIDE DUE IN TWO HOURS!!!!!!
Finger [1]

Answer:

Fourth degree polynomial (aka: quartic)

====================================================

Work Shown:

There isnt much work to show here because we can use the fundamental theorem of algebra. The fundamental theorem of algebra states that the number of roots is directly equal to the degree. So if we have 4 roots, then the degree is 4. This is assuming that there are no complex or imaginary roots.

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

If you want to show more work, then you would effectively expand out the polynomial

(x-m)(x-n)(x-p)(x-q)

where

m = 4, n = 2, p = sqrt(2), q = -sqrt(2)

are the four roots in question

(x-m)(x-n)(x-p)(x-q)

(x-4)(x-2)(x-sqrt(2))(x-(-sqrt(2)))

(x-4)(x-2)(x-sqrt(2))(x+sqrt(2))

(x^2-6x+8)(x^2 - 2)

(x^2-2)(x^2-6x+8)

x^2(x^2-6x+8) - 2(x^2-6x+8)

x^4-6x^3+8x^2 - 2x^2 + 12x - 16

x^4 - 6x^3 + 6x^2 + 12x - 16

We end up with a 4th degree polynomial since the largest exponent is 4.

3 0
3 years ago
Are the ratios proportional?<br> 2/7 and 6/21
grin007 [14]

yes because 2*3 equals 6 and 7*3 equals 21, which gives you equal proportions
7 0
4 years ago
Morgan has 98 baseball cards in his collection, which is twelve less than the product of 5 and the number of cards tyler has
Deffense [45]
Well try this 98 - 5 =93
4 0
3 years ago
Solve the following automotive-services problem.
svp [43]
I think the amswer is A

5 0
3 years ago
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