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levacccp [35]
3 years ago
7

What is 2.1 as a fraction?

Mathematics
1 answer:
german3 years ago
7 0
2 1/10 because the 1 in 2.1 is in the tenth place
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Write a polynomial function f of least degree that has a leading coefficient of 1 and the given zeros. Write the function in sta
NeX [460]

Answer:

f(x)=x^3+(3+\sqrt{5})x^2+(6\sqrt{5}-18)x

or

f(x)=x^3+3x^2+\sqrt{5}x^2-18x+6\sqrt{5}x

Step-by-step explanation:

A polynomial function with 3 zeroes is going to be of degree 3, so we're going to have at least least 3 factors of the form x-a, where <em>a </em>is a zero of the function. For three zeroes <em>a</em>, <em>b</em>, and <em>c</em>, we'd have the factors x-a,\ x-b, and x-c, making our function look like

f(x)=(x-a)(x-b)(x-c)

Substituting our roots for a, b, and c:

f(x)=(x-(-6))(x-0)(x-(3-\sqrt{5}))\\=(x+6)(x)(x-3+\sqrt{5})

To write this function in standard form, we can expand from left to right:

f(x)=(x^2+6x)(x-3+\sqrt{5})\\=(x^2+6x)x-(x^2+6x)3+(x^2+6x)\sqrt{5}\\=x^3+6x^2-3x^2-18x+\sqrt{5}x^2+6\sqrt{5}x\\=x^3+3x^2+\sqrt{5}x^2-18x+6\sqrt{5}x

At this point, we could either leave it as is, or group the coefficients for the x^2 and x terms to get

f(x)=x^3+(3+\sqrt{5})x^2+(6\sqrt{5}-18)x

7 0
4 years ago
Which one is it???Plz help
never [62]
The answer is b. In b, 10 is divided from both 90 and 60, and that's gives you 9+6.
7 0
3 years ago
Read 2 more answers
Give the most accurate name for this figure
anyanavicka [17]

Answer:

Equilateral Triangle

geometric shapes equilateral triangle

Equilateral triangles have all angles equal to 60° and all sides equal length.

All equilateral triangles have 3 lines of symmetry.

Isoscles Triangle

Isosceles triangle

Isosceles triangles have 2 angles equal and 2 sides of equal length.

All isosceles triangles have a line of symmetry.

Scalene Triangle

scalene triangle

Scalene triangles have no angles equal, and no sides of equal length.

Right Triangle

right triangle or right angled triangle

Right triangles (or right angled triangles) have one right angle (equal to 90° ).

Obtuse Triangle

obtuse triangle

Obtuse triangles have one obtuse angle (an angle greater than 90° ). The other two angles are acute (less than 90° ).

Acute Triangle

acute triangle

Acute triangles have all angles acute.

Only cause i dont see a figure

8 0
3 years ago
There is A line and it cuts through 2 on the y axis what is the equation
xz_007 [3.2K]
Well there is no one equation, many lines pass through 2
here is  a equation that works
 y = 2x + 2
or just y = 2
4 0
4 years ago
2(3x + 9) = -10 + 16<br> Solve for x need all the work shown
MrRa [10]
Answer: X= -2

........

3 0
3 years ago
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