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Snowcat [4.5K]
3 years ago
10

Part 2

Mathematics
2 answers:
marysya [2.9K]3 years ago
5 0

GIVEN:

  • <u>Equation</u> :— x² - 4x + 5

ANSWER:

In "Diamond method", bottom slot is filled by the 'b' or coefficient of x.

And here, a = 1; b = - 4; c = 5.

So, <u>Correct choice</u> - [A] - 4.

NOTE: See picture attached.

Taya2010 [7]3 years ago
4 0

9514 1404 393

Answer:

  a.  -4

Step-by-step explanation:

When using the "diamond method" for factoring quadratics, the bottom number is the coefficient of the linear term. In this quadratic, it is -4.

The bottom number is -4.

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If both zeroes of quadratic polynomial (k+2)x^2-(k-2)x-5 are equal in magnitude but opposite in sign find k
Anna [14]

Answer:

k=2

Step-by-step explanation:

(k + 2) {}^{2}  - (k - 2)x - 5 = 0

If we have two zeroes that are equal in size, but different signs then we have a different of squares,

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

So in order to do this we must make the middle term, x 0 so

k - 2 = 0

k = 2

6 0
2 years ago
Anyone know how to do this please help ty !!! ​
Sergio039 [100]

Answer:

24. 7z^2(2z^3+1)

27. 7t (3t - 2)

30. 3a^2 (a^3-2a+4)

Step-by-step explanation:

You didnt specify what to do so i just assume this is a factorization question.

7 0
3 years ago
Mama's Italian Restaurant has collected data about customer sauce orders. It calculated that P(marinara) = 0.82, P(alfredo) = 0.
wariber [46]
Denote by m for marinara and by a for alfredo and recall the following law:
P(M\cup A)=P(M)+P(A)-P(M\cap A)
Therefore 
P(M\cap A)=P(M)+P(A)-P(M\cup A)\\ 0.82+0.76-0.96\\ =0.62
The correct answer is the last one. 
5 0
3 years ago
What is the maximum number of relative extrema a polynomial function can have?
creativ13 [48]
Relative extrema occur where the derivative is zero (at least for your polynomial function). So taking the derivative we get

<span>20<span>x3</span>−3<span>x2</span>+6=0

</span><span> This is a 3rd degree equation, now if we are working with complex numbers this equation is guaranteed to have 3 solutions by the fundamental theorem of algebra. But the number of real roots are 1 which can be found out by using Descartes' rule of signs. So the maximum number of relative extrema are 1.</span>
4 0
3 years ago
Which step should be completed first to solve the equation --2 = 3z + 4 ?
IRINA_888 [86]
Subtract four from both sides. That'll put both numbers without a variable on one side, and the number with the variable is by itself.
4 0
4 years ago
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