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Flauer [41]
3 years ago
7

Y=x^2+5×+2 y=×-1pls​

Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Answer:

x=-1 \ or \ x=-3

Step-by-step explanation:

y = x^2 + 5x +2\\y = x-1\\\\

Equating both equations equal to each other:

x^2 + 5x+2 = x-1\\x^2+5x+2 -x +1 =0\\x^2 + 4x +3 = 0

Breaking the middle term:

x^2 + 4x +3 =0\\x^2 +3x + x +3 =0 \\x(x+3) +1 (x+3) = 0\\(x+1)(x+3)=0\\x+1 =0 \ or \ x+3 =0\\x=-1 \ or \ x=-3

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Which of the following would be the most logical first step to solving this
NikAS [45]

Answer:

D is correct option

Step-by-step explanation:

The correct option is D.

The standard quadratic equation is ax²+bx+c=0

Where a and b are coefficients and c is constant.

It means that constant are on the L.H.S and there is 0 on the right hand side.

Therefore to make it a quadratic equation first of all you have to add 11 at both sides so that the R.H.S becomes 0.

The given equation is:

2x2-x+ 2 = -11

If we add 11 on both sides the equation will be:

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8 0
3 years ago
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const2013 [10]

Answer:

Isabella earn 5604.54 more money than  Gabriel

Step-by-step explanation:

As we know

Compound interest (CI) = P (1 + \frac{r}{n})^{nt}

P is the principal amount

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n is the number of time periods

r is the rate of interest

a)  CI for  Gabriel

= 77000 (1 + \frac{3}{100*12})^{12*6} = 92165.03 dollars

b) CI for Isabella

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7 0
3 years ago
Solve <br> X^2+5x+6=0<br><br> Please help
gogolik [260]

Answer: x= 3,2

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

5 0
3 years ago
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Nat2105 [25]

Answer:

HJ=42\ m

Step-by-step explanation:

we know that

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The figure FHJM is a parallelogram

so

FH=JM=36\ m

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6 0
3 years ago
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Anna [14]

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Step-by-step explanation:

Add 13 and 11 which gives you 24. Then add 8 and 7 which gives you 15. Then subtract 24 - 15 which gives you a difference of 9.

8 0
3 years ago
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