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Drupady [299]
3 years ago
10

Formula of a square minus b square​

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
6 0
<h3>According to the question</h3>

\large\bf{\orange{  \implies}} \:  \tt \:  {a}^{2}  \:  -  \:  {b}^{2}

\large\bf{\pink{  \implies}} \:  \tt \: (a + b) \quad \: (a - b)

\large\bf{\pink{  \implies}} \:  \tt \: a \: (a - b) \quad \: b \: (a - b)

\large\bf{\pink{  \implies}} \:  \tt \:  {a}^{2}  \:  -  \: ab \:  +  \: ba \:  -  \:  {b}^{2}

\large\bf{\pink{  \implies}} \:  \tt \:  {a}^{2}  \:  -  \: ab \:  +  \: ab \:  -  \:  {b}^{2}

\large\bf{\pink{  \implies}} \:  \tt \:  {a}^{2}  \:  -  \:  \cancel{ab} \:  +  \:  \cancel{ab} \:  -  \:  {b}^{2}

\large\bf{\pink{  \implies}} \:  \tt \:  {a}^{2} \:  -  \: {b}^{2}

Anna71 [15]3 years ago
4 0

Answer:

(a+b)(a-b)

Step-by-step explanation:

\\ \sf\longmapsto (a+b)(a-b)

\\ \sf\longmapsto a(a-b)+b(a-b)

\\ \sf\longmapsto a^2-ab+ba-b^2

\\ \sf\longmapsto a^2-ab+ab-b^2

\\ \sf\longmapsto a^2-b^2

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how strong is the relationship between the score on the first exam and the score on teh final exam in an elementary statistics c
Alexxx [7]

Answer: Invalid question

Step-by-step explanation: Hello friend, kindly make available the remaining details of the question.

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7 0
3 years ago
9. Which of the following is a prime<br> number?<br> a. 61<br> b. 39<br> C. 60<br> d. 145
malfutka [58]

Answer:

The prime number is 61

Step-by-step explanation:

Hope this helps.

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5 0
3 years ago
Read 2 more answers
Suppose the method of tree ring dating gave the following dates A.D. for an archaeological excavation site. Assume that the popu
maw [93]

Answer:

(1238.845 ;1285.376)

Step-by-step explanation:

Conditions for constructing a confidence interval :

Data must be random

Distribution should be normal and independent ;

Based on the conditions above ; data meets initial conditions ;

C. I = sample mean ± margin of error

Given the data :

1241 1210 1267 1314 1211 1299 1246 1280 1291

Mean, xbar = Σx / n = 11359 / 9 = 1262.11

The standard deviation, s = [√Σ(x - xbar)²/n - 1]

Using a calculator ; s = 37.525

The confidence interval :

C.I = xbar ± [Tcritical * s/√n]

Tcritical(0.10 ; df = n - 1 = 9 - 1 = 8)

Tcritical at 90% = 1.860

C. I = 1262.11 ± [1.860 * 37.525/√9]

C.I = 1262.11 ± 23.266

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± 23.266

The margin of error :

[Tcritical * s/√n]

[1.860 * 37.525/√9]

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7 0
3 years ago
What are m and b and what do they represent for the cost function
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434567890

Step-by-step explanation:

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3 years ago
The polynomial p(x)=x^3-7x-6 has a non-factor of (x+1) rewrite p(x) as a product of linear factors.
In-s [12.5K]

Answer:

Using synthetic division suffices to answer your question:

Step-by-step explanation:

Synthetic division is the process by one reduces a large polynomial in your case x^3-7x-6 by a binomial in your case (x+1).

To do so one does the following:

\begin{array}{cccccc}-1|& 1&0&-7&-6\\ & &-1&1&6 \\& 1&-1&-6&0  \end{array}

Since we divided by a linear binomial it reduces the power by one which produces the following quadratic:

(x^2-x-6)

Which can be factored in the following, and I will provide the complete factorization as well:

p(x)=(x+1)(x-3)(x+2)

7 0
3 years ago
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