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bezimeni [28]
3 years ago
14

Help........................

Mathematics
1 answer:
aleksley [76]3 years ago
5 0
Not clear enough ......
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). If a, ß are zeroes of the quadratic polynomial p(x)=kx²+4x+4 such
natta225 [31]

Answer:

The values of k are 2/3 and -1

Step-by-step explanation:

Product of zeros = αβ= constant  / coefficient of x^2 =  4/k

Sum of zeros =α+β = - coefficient of x / coefficient of x^2= -4/k

Given

Consider a= α and b= β

(\alpha)^2 + (\beta)^2 = 24

(\alpha)^2 + (\beta)^2 can be written as (\alpha)^2 + 2(\alpha)(\beta) + (\beta)^2 if we add \pm 2 (\alpha)(\beta) in the above equation.

(\alpha)^2 + 2(\alpha)(\beta) + (\beta)^2 -2(\alpha)(\beta)

(\alpha + \beta)^2 -2(\alpha)(\beta)

Putting values of αβ and α+β

(\frac {-4}{k})^2 -2( \frac {4}{k}) = 24\\\frac {16}{k^2} - \frac {8}{k} = 24\\Multiplying\,\, the \,\, equation\,\, with\,\, 8K^2\\ 2 - k= 3K^2\\3k^2-2+k=0\\or\\3k^2+k-2=0\\3k^2+3k-2k-2=0\\3k(k+1)-2(k+1)=0\\(3k-2)(k+1)=0\\3k-2=0 \,\,and\,\, k+1 =0\\k= 2/3 \,\,and\,\, k=-1

The values of k are 2/3 and -1

8 0
4 years ago
Can someone help me with this ?
kifflom [539]
-27 minus 10 isn't -17....its -37 so since that mistake everything else is counted as a mistake
Hope this helps
4 0
3 years ago
Read 2 more answers
Jan is cutting a rectangular pan of brownies. She cutthem in half and then cut each of those has and has again she did the same
Vinvika [58]

Answer:

She has 16 brownies

Step-by-step explanation:

Initially cut rectangular pan in to two halves.

Then cut each half in half again.

Now total pieces = 4

Now repeat cutting half on other side:

total pieces =8

Now divide each half into another half.

total pieces = 8 x 2 = 16

As can be shown in figure:

Black = first half

pink = dividing each half into another half.

8 0
3 years ago
The following steps can be used to compute
Vlada [557]
1. Commutative property of multiplication

IM SO SORRY IF IM WRONG
8 0
3 years ago
If mAD=85 degrees and mBC=31 degrees find the value
Eddi Din [679]
Answer: x = 11

To start, we know that a whole circle equals 360 degrees. If we subtract the 2 arcs we know, 85 and 31, we have 244 degrees left for the 2 congruent arcs. Dividing that by 2 gives us 122 for each arc.

Now, write the equation:  122 = 13x - 21

Solve this, to find the x = 11.
7 0
3 years ago
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