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irinina [24]
2 years ago
10

Mr jacob has 4 white beans and 8 black beans what is thr frction of the black beans 1/3 4/8 8/4 2/3

Mathematics
2 answers:
Serggg [28]2 years ago
8 0

Explanation:

<u>We know that:</u>

  • White beans: 4
  • Black beans: 8
  • Total number of beans: 4 + 8 = 12

The fraction of the black beans is the number of black beans divided by the total number of beans.

Solution:

<u>Fraction of black beans: Black beans/Total beans</u>

  • => 8/4 + 8
  • => 8/12
  • => 2/3

<u>Hence, the fraction of black beans is 2/3.</u>

Yanka [14]2 years ago
3 0
If you can give me more information on this I could help you a bit more respond.
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3 years ago
Write a polynomial function, p(x) with degree 3 that has p(7)=0
MArishka [77]

Answer:

p (x) = x^{3} - 21x^{2}+ 147x - 343

is the required polynomial with degree 3 and p ( 7 ) = 0

Step-by-step explanation:

Given:

p ( 7 ) = 0

To Find:

p ( x ) = ?

Solution:

Given p ( 7 ) = 0 that means substituting 7 in the polynomial function will get the value of the polynomial as 0.

Therefore zero's of the polynomial is seven i.e 7

Degree : Highest raise to power in the polynomial is the degree of the polynomial

We have the identity,

(a -b)^{3} = a^{3}-3a^{2}b +3ab^{2} - b^{3}

Take a = x

        b = 7

Substitute in the identity we get

(x -7)^{3} = x^{3}-3x^{2}(7) +3x(7)^{2} - 7^{3}\\(x -7)^{3} = x^{3}-21x^{2} +147x - 343

Which is the required Polynomial function in degree 3 and if we substitute 7 in the polynomial function will get the value of the polynomial function zero.

p ( 7 ) = 7³ - 21×7² + 147×7 - 7³

p ( 7 ) = 0

p (x) = x^{3} - 21x^{2}+ 147x - 343

4 0
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