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ElenaW [278]
3 years ago
13

What are the zeros of the quadratic function f(x) = 2x2 + 8x – 3?

Mathematics
2 answers:
julsineya [31]3 years ago
8 0
The zeros of the function are also called the roots. Thus, this problem is basically locating the root of the given equation.

To locate the roots, we equate the equation f(x) to 0.

We then dissect each term to identify a, b, and c in the quadratic equation formula:

x = (- b +- √(b²-4ac))/2a

a = 2
b = 8
c = -3

x1 = 0.3452
x2 = -4.345


topjm [15]3 years ago
8 0

Answer:

a

Step-by-step explanation:

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Which equation relates the number of triangles in the figure (n) to the perimeter of the figure (p)
WITCHER [35]

Answer:

Option d is correct.

Equation : P=7n+20.

Explanation;

Given the perimeter of each figure is;

Perimeter of triangle is equal to the sum of all the sides of a triangle.

Perimeter of 1 triangle is 21

Perimeter of 2 triangle is 34 and

Perimeter of 3 triangle is 41

Let n be the number of figure and P be the perimeter of the figure;

the only equation which satisfy the given perimeter is;

P=7n+20

Check:

for n =1 which means 1 triangle then;

P =7n+20 = 7 \cdot 1 +20 = 7+20 = 27

for n = 2 , [ i.e 2 triangle]

P =7n+20 = 7 \cdot 2 +20 = 14+20 = 34

and for n =3 [i.e, 3 triangles]

P =7n+20 = 7 \cdot 3 +20 = 21+20 = 41

Therefore, the equation P =7n+20 relates the number of triangles in the figure(n) to the perimeter of the figure(P).


3 0
3 years ago
What is the equation of the line in slope-intercept form that is perpendicular to line g and passes through the point (4, 2)? Sh
BaLLatris [955]

The equation of the line is y = -x + 6 if the passes through the point (4, 2).

<h3>What is a straight line?</h3>

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

\rm m =\dfrac{y_2-y_1}{x_2-x_1}

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

It is given that:

From the graph:

The slope of the line g = (0-5)/(-5-0)

= 1

The slope perpendicular to the line g:

= -1

y - 2 = -(x - 4)

y - 2 = -x + 4

y = -x + 6

Thus, the equation of the line is y = -x + 6 if the passes through the point (4, 2).

Learn more about the straight line here:

brainly.com/question/3493733

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4 0
1 year ago
Estelle bought 7.2 pounds of oatmeal and gave 6.1 pounds of it to a neighbor. How much
Harman [31]

Answer:

1.1

Step-by-step explanation:

7.2-6.1

3 0
3 years ago
What is 9,846,000,000,000 expressed in scientific notation? A. 9.846 × 10 B. 98.46 × 10 C. 9.846 × 10 D. 98.46 × 10
Talja [164]
9,846,000,000,000 = <span>9.846 x 10^12

answer

</span>9.846 x 10^12
5 0
3 years ago
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The graph shows y as a function of x:
V125BC [204]

Answer:

d

Step-by-step explanation:

y = f(x)

  • Seg A is || to x axis
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4 0
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