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Oksana_A [137]
4 years ago
5

A parabola is represented by the equation y = x2 + 6x − 17. The x-intercepts of the parabola are and .

Mathematics
2 answers:
Damm [24]4 years ago
3 0
F(x) = y = 0
x^2+6x-17=0 \\\\ (x^2+6x+9)-9-17=0 \\\\ (x+3)^2=26 \\\\ \sqrt{(x+3)^2}=\sqrt{26} \\\\ x+3=\sqrt{26} \ or \ x+3=-\sqrt{26} \\\\ x=\sqrt{26}-3 \ or \ x = -\sqrt{26}-3

The x-intercepts of the parabola are \sqrt{26}-3 \ and \ -\sqrt{26}-3
ivanzaharov [21]4 years ago
3 0

Answer:

X intercept are (-8.09,0) and (2.09,0)

Y intercept (o,-17)

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Thursday

1= y dollars

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A. 12y+45

7 0
3 years ago
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8 0
4 years ago
How many complex zeros does the polynomial function have? <br><br> F(x)=2x^4 +5x^3 - x^2 +6x-1
klio [65]

Answer:

Two complex roots.

Step-by-step explanation:

F(x)=2x^4 +5x^3 - x^2 +6x-1

is a polynomial in x of degree 4.

Hence F(x) has 4 roots.  There can be 0 or 2 or 4 complex roots to this polynomial since complex roots occur in conjugate pairs.

Use remainder theorem to find the roots of the polynomial.

F(0) = -1 and F(1) = 2+5-1+6-1 = 11>0

There is a change of sign in F from 0 to 1

Thus there is a real root between 0 and 1.

Similarly by trial and error let us find other real root.

F(-3) = -1 and F(-4) = 94

SInce there is a change of sign, from -4 to -3 there exists a real root between -3 and -4.

Other two roots are complex roots since no other place F changes its sign

7 0
3 years ago
Eva's TV screen is 20 inches long. If the diagonal measures 25 inches, how long is the width of Eva's TV? Brainliest for correct
Sauron [17]
25^2 - 20^2 = A^2
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The width of Eva’s TV was 15 inches.
Hope this helps!!
7 0
3 years ago
Consider the original complex figure and the reduction.
Dmitriy789 [7]

Answer:

1/8

Step-by-step explanation:

I'm going to try to explain this as easy as possible. What I did was take the original shape and divide it by the new shape. For this question, I solved it by dividing 32(the original base) by 4(the new base) and got 8. So the scale factor of the reduction was 1/8.

8 0
3 years ago
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