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never [62]
3 years ago
15

Find the value or values of the Y in the quadratic equation y squared + 4 y + 4 equals 7

Mathematics
1 answer:
QveST [7]3 years ago
6 0
Y² + 4y + 4 = 7
             - 7  - 7
 y² + 4y - 3 = 0
               y = -(4) ± √((4)² - 4(1)(-3))
                                   2(1)
               y = -4 ± √(16 + 12)
                                 2
               y = -4 ± √(28)
                            2
               y = -4 ± 2√(7)
                            2
               y = -2 ± √(7)
               y = -2 + √(7)    U    y = -2 - √(7)
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85×250=_______ + 387= _______
Neko [114]

Answer:

21,637

Step-by-step explanation:

You can just use a caculator- Or simple multiplication by putting it on top of eachother.

You can do this many ways,just multiply with pen and paper,put 250 on top,and 85 on bottom which is 21,250,the add from there!

Hope I helped!!

7 0
2 years ago
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6 0
3 years ago
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klemol [59]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
r-ruslan [8.4K]
The first thing you should do is to determine all the zeros, and you will have 7, -11, 2 + 6i, 2 - 6i.
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</span>(7-x)(-11-x)(2 + 6i-x)(2 - 6i-x)
<span>I am pretty sure that everything hase become clear! Regards.</span>
6 0
3 years ago
angle works at AutoZone and makes $72 dollars a day and extra $8 for each platinum membership card he sells. angles goal is to m
GenaCL600 [577]

Angle needs to sell 16 membership cards.

First, I subtracted 72 from 200 and that gave me 128. Then, I divided 128 by 8 and got 16. To check my work I multiplied 16 by 8 and got 128. Then I added 72 to 128 and got 200.

Hope this helps!

7 0
3 years ago
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