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2 years ago

Find the area of the figure. Round your answer to the nearest hundredth.

Mathematics

2 answers:

zaharov [31]2 years ago

6 0

Answer:

84.13

Step-by-step explanation:

4+4=8

14-8=6

the area of a circle is A=πr^2

A=π3^2

=28.27

divide is by 2 cos its a semi circle

28.27/2

14.13+(5x14)

14.13+70=84.13

Vlad1618 [11]2 years ago

3 0

Answer:

Total area = 98.26 ft²

I didn't do the math for this, credit goes to: https://brainly.in/question/16592416

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3 years ago

For what value of k is there one solution to the given quadratic equation (k+1)x²+4kx+2=0.

andriy [413]

Answer:

If $k = 1$ or $k = -\frac{1}{2}$ , there is only one solution to the given quadratic equation.

Step-by-step explanation:

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 $ax^{2} + bx + c = (x - x_{1})*(x - x_{2})$ , given by the following formulas:

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

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

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The signal of $\bigtriangleup$ determines how many real roots an equation has:

$\bigtriangleup > 0$ : Two real and different solutions

$\bigtriangleup = 0$ : One real solution

$\bigtriangleup < 0$ : No real solutions

In this problem, we have the following second order polynomial:

$(k+1)x^{2} + 4kx + 2 = 0$ .

This means that $a = k+1; b = 4k; c = 2$

It has one solution if

$\bigtriangleup = 0$

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$16k^{2} -8(k+1) = 0$

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We can simplify by 8

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The solution is:

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Step-by-step explanation:

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kati45 [8]

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Step-by-step explanation:

Basic math helps.

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