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Fudgin [204]
3 years ago
14

Please help me with this. an explanation would be great as well

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
6 0

Answer:

A

Step-by-step explanation:

test the constant 1/2 + (1/2)*(-3) = -2/2 = -1

Wittaler [7]3 years ago
6 0

Answer:

A

Step-by-step explanation:

y + yz

= x + \frac{1}{2} + (x + \frac{1}{2} )(2x - 3) ← expand factors using FOIL

= x + \frac{1}{2} + 2x² - 3x + x - \frac{3}{2} ← collect like terms

= 2x² - x - 1 → A

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Explain how to use Pascal's Triangle to expand the binomial (3x-4y)^11
Mars2501 [29]

The solution to the binomial expression by using Pascal's triangle is:

\mathbf{=177147x^{11}-2598156x^{10}y +17321040x^9y^2-69284160x^8y^3+184757760x^7y^4}

\mathbf{-344881152x^6y^5+459841536x^5y^6-437944320x^4y^7+291962880x^3y^8}

\mathbf{-129761280x2y^9+34603008xy^{10}-4194304y^{11}}

<h3>How can we use Pascal's triangle to expand a binomial expression?</h3>

Pascal's triangle can be used to calculate the coefficients of the expansion of (a+b)ⁿ by taking the exponent (n) and adding the value of 1 to it. The coefficients will correspond with the line (n+1) of the triangle.

We can have the Pascal tree triangle expressed as follows:

                          1

               1                   1

        1                2                 1

    1          3              3               1

1      4            6                4            1

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

From the given information:

The expansion of (3x-4y)^11 will correspond to line 11.

Using the general formula for the Pascal triangle:

\mathbf{(a+b)^n = c_oa^nb^0 + c_1 a^{n-1}b^1+c_{n-1}a^1b^{n-1}+c_na^0b^n}

The solution to the expansion of the binomial (3x-4y)^11 can be computed as:

\mathbf{=177147x^{11}-2598156x^{10}y +17321040x^9y^2-69284160x^8y^3+184757760x^7y^4}

\mathbf{-344881152x^6y^5+459841536x^5y^6-437944320x^4y^7+291962880x^3y^8}

\mathbf{-129761280x2y^9+34603008xy^{10}-4194304y^{11}}

Learn more about Pascal's triangle here:

brainly.com/question/16978014

#SPJ1

5 0
2 years ago
X+x-z; use x=3 &amp; z=4​
nadezda [96]

Answer:

2

Step-by-step explanation:

Order of operations is not as applicable in this situation because we're just dealing with addition and subtraction.  This is a simple case of plugging in values for the given expression.

x = 3

z = 4

So it becomes...

3 + 3 - 4

6 - 4

2

So with the given expression of x + x - z and the given values of x = 3 and z = 4, the expression should sum to: 2

6 0
3 years ago
Help<br> Please ..................
Paul [167]
Plug in -11 for x
8(-11) + 2.
-86
7 0
3 years ago
Read 2 more answers
A certain type of bird has a probability of 1/12 Harding a bird with white feather. If a bird lays 2 eggs, find the probability
liq [111]
A. \frac{1}{12}*(1-\frac{1}{12})\\\frac{1}{12}*\frac{11}{12}\\\frac{11}{144}

B. \frac{1}{12}*(1-\frac{1}{12})+\frac{1}{12}*\frac{1}{12}\\\frac{1}{12}*\frac{11}{12}+\frac{1}{144}\\\frac{11}{144}+\frac{1}{144}\\\frac{12}{144}\\\frac{1}{12}
6 0
3 years ago
A car traveled 180 miles and used 6 gallons
Anna [14]

Answer:The answer is 42 gallons.

Step-by-step explanation:

The car traveled 180 miles on 6 gallons of gas, so it got 30 miles per gallon. So divide 1260 by 30 to find the number of gallons needed to go 1260 miles.

8 0
3 years ago
Read 2 more answers
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