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Daniel [21]
3 years ago
14

The graph of a quadratic function is shown above.

Mathematics
1 answer:
OleMash [197]3 years ago
6 0

Answer:

  • 0 real zeros
  • 2 complex zeros

Step-by-step explanation:

The "fundamental theorem of algebra" says a polynomial of degree n will have n zeros. If the polynomial has real coefficients, the complex zeros will appear in conjugate pairs.

The graph of this quadratic (degree = 2) does not cross the x-axis, so there are no real values of x that make y=0. That means the two zeros are both complex.

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C. Euclid is known as the father of Geometry

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Which below is an expression 2+2=4 2+3=5 2x+5 2x=4 PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!
gizmo_the_mogwai [7]

2x=4

it is the expression here.

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The diagonal of a square is x units. What is the area of the square in terms of x?
Anettt [7]

Answer:

1/2(x²) square units

Step-by-step explanation

From the question,

Area of a Square(A) = L²

A = L²................. Equation 1

Where L = Lenght of the square

If the diagonal of the square is x,

Using pythagoras theorem,

a² = b²+c².................. Equation 2

Wherer a = x, b = c= L

Therefore,

x² = L²+L²

x² = 2L²

L² = x²/2

L = √(x²/2)

Substitute the value of L into equation 1

A = [√(x²/2)]²

A = x²/2 square unit.

A = 1/2(x²) square unit.

The right option is 1/2(x²) square units

3 0
3 years ago
Question 4
Vsevolod [243]
I think answer should be 8 please give me brainlest let me know if it’s correct or not okay thanks bye I appreciate it thanks
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3 years ago
Use either the shell method or the disk/washer method to find the volume of the solid (Calculus Help!!!)
Rufina [12.5K]

Integrating with shells is the easier method.

<em>V</em> = 2<em>π</em> ∫₁³ <em>x</em> (√<em>x</em> + 3<em>x</em>) d<em>x</em>

That is, at various values of <em>x</em> in the interval [1, 3], we take <em>n</em> shells of radius <em>x</em>, height <em>y</em> = √<em>x</em> + 3<em>x</em>, and thickness ∆<em>x</em> so that each shell contributes a volume of 2<em>π</em> <em>x</em> (√<em>x</em> + 3<em>x</em>) ∆<em>x</em>. We then let <em>n</em> → ∞ so that ∆<em>x</em> → d<em>x</em> and sum all of the volumes by integrating.

To compute the integral, just expand the integrand:

<em>V</em> = 2<em>π</em> ∫₁³ (<em>x </em>³ʹ² + 3<em>x</em> ²) d<em>x</em>

<em>V</em> = 2<em>π</em> (2/5 <em>x </em>⁵ʹ² + <em>x</em> ³) |₁³

<em>V</em> = 2<em>π</em> ((2/5 ×<em> </em>3⁵ʹ² + 3³) - (2/5 × 1⁵ʹ² + 1³))

<em>V</em> = 4<em>π</em>/5 (9√3 + 64)

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3 years ago
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