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Kobotan [32]
3 years ago
11

10 points ! please helpFind the percent the first number is of the second:c5 ft, 37.5 ft

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

13 1/3%

Step-by-step explanation:

37.5/5=7.5

100/7.5=13.33333

13.333333= 13 1/3

Answer: 13 1/3%

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Miss Mugen made six dozen fruit cups for the party the guest ate all but 20 fruit cups how many fruit cups were eaten
shusha [124]
52 fruit cups. 6(12)=72 72-20=52
3 0
3 years ago
Find a factorization of x² + 2x³ + 7x² - 6x + 44, given that<br> −2+i√√7 and 1 - i√/3 are roots.
Levart [38]

A factorization of x^4+2x^3+7x^2-6x+44 is (x^2+4x+11)(x^2-2x+4).

<h3>What are the properties of roots of a polynomial?</h3>
  • The maximum number of roots of a polynomial of degree n is n.
  • For a polynomial with real coefficients, the roots can be real or complex.
  • The complex roots of a polynomial with real coefficients always exist in a pair of conjugate numbers i.e., if a+ib is a root, then a-ib is also a root.

If the roots of the polynomial p(x)=ax^4+bx^3+cx^2+dx+e are r_1,r_2,r_3,r_4, then it can be factorized as p(x)=(x-r_1)(x-r_2)(x-r_3)(x-r_4).

Here, we are to find a factorization of p(x)=x^4+2x^3+7x^2-6x+44. Also, given that -2+i\sqrt{7} and 1-i\sqrt{3} are roots of the polynomial.

Since p(x)=x^4+2x^3+7x^2-6x+44 is a polynomial with real coefficients, so each complex root exists in a pair of conjugates.

Hence, -2-i\sqrt{7} and 1+i\sqrt{3} are also roots of the given polynomial.

Thus, all the four roots of the polynomial p(x)=x^4+2x^3+7x^2-6x+44, are: r_1=-2+i\sqrt{7}, r_2=-2-i\sqrt{7}, r_3=1-i\sqrt{3}, r_4=1+i\sqrt{3}.

So, the polynomial p(x)=x^4+2x^3+7x^2-6x+44 can be factorized as follows:

\{x-(-2+i\sqrt{7})\}\{x-(-2-i\sqrt{7})\}\{x-(1-i\sqrt{3})\}\{x-(1+i\sqrt{3})\}\\=(x+2-i\sqrt{7})(x+2+i\sqrt{7})(x-1+i\sqrt{3})(x-1-i\sqrt{3})\\=\{(x+2)^2+7\}\{(x-1)^2+3\}\hspace{1cm} [\because (a+b)(a-b)=a^2-b^2]\\=(x^2+4x+4+7)(x^2-2x+1+3)\\=(x^2+4x+11)(x^2-2x+4)

Therefore, a factorization of x^4+2x^3+7x^2-6x+44 is (x^2+4x+11)(x^2-2x+4).

To know more about factorization, refer: brainly.com/question/25829061

#SPJ9

3 0
2 years ago
Read 2 more answers
2. Carbohydrates are found in many foods. What is the end result of the body's use of a
nekit [7.7K]

Answer: the end result of carbohydrate is glucose, carbohydrates enhances energy and sugar levels.

Step-by-step explanation:

Major sources of carbohydrates are vegetables, fruits, whole grains, milk, and milk products. Carbohydrates at the chemical level contains carbon, hydrogen and oxygen.

5 0
4 years ago
A jacket's original price is $65.00. It on sale for 40% off. You have to pay 5% sales tax what is the final price for the jacket
ohaa [14]

Answer: $40.95

Step-by-step explanation:

65 times 40%=26

So 40% off is 26 dollars off

The price is $39

Then when you add the sales tax by  doing 39 times 5%, you see that the sale tax is $1.95

39+1.95= $40.95 for the jacket

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3 years ago
How much area is left over
LenaWriter [7]
I won't tell you the answer but I'll tell you how to do it

first, find the area of the rectangle (lxw)

Next, find area of the triangle (BxHx.5)

Then, subtract the area of the rectangle to the area of the triangle
5 0
4 years ago
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