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3 years ago

What is the variance of the value 7, 15, 11, 1, 11

Mathematics

1 answer:

ella [17]3 years ago

8 0

The variance of the value 7,15,11,1,11 is 22.4

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A flower surrounds the base of a tree. It is in close by stones to form a circle that measures 21.98 feet around. What is the ra

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(3.14)(21.98)(21.98)

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2 years ago

Write a problem that can be solved with the equation r divided by 6=14

mariarad [96]

R/6=14
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2 years ago

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Reptile [31]

Answer:

The real zeros of f(x) are x = 0.3 and x = -3.3.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this problem, we have that:

$f(x) = x^{2} + 3x - 1$

$a = 1, b = 3, c = -1$

$\bigtriangleup = 3^{2} - 4*1*(-1) = 13$

$x_{1} = \frac{-3 + \sqrt{13}}{2*1} = 0.3$

$x_{2} = \frac{-3 - \sqrt{13}}{2*1} = -3.3$

The real zeros of f(x) are x = 0.3 and x = -3.3.

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2 years ago

Tobias has 12 coins in his pocket. Of these coins, 8 were made in the year 2000,and

Free_Kalibri [48]

Answer on attached file.
Bye.

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3 years ago