2 years ago

What is the area, in square centimeters, of the shape below? 3.7 cm 5.8 cm

Mathematics

1 answer:

Fudgin [204]2 years ago

3 0

Answer:

im pretty sure its 10.73, multiply 3.7 and 5.8 then divide 2

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3x^2+kx=-3 What is the value of K will result in exactly one solution to the equation?

Scorpion4ik [409]

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For k = 6 or k = -6, the equation will have exactly one solution.

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:

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

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

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

If $\bigtriangleup = 0$ , the equation has only one solution.

In this problem, we have that:

$3x^{2} + kx + 3 = 0$

$a = 3, b = k, c = 3$

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

$\bigtriangleup = k^{2} - 4*3*3$

$\bigtriangleup = k^{2} - 36$

We will only have one solution if $\bigtriangleup = 0$ . So

$\bigtriangleup = 0$

$k^{2} - 36 = 0$

$k^{2} = 36$

$k = \pm \sqrt{36}$

$k = \pm 6$

For k = 6 or k = -6, the equation will have exactly one solution.

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3 years ago

Will give brainliest

Serggg [28]

Answer:

whats (2x)x(76) x is 50 btw im new

Step-by-step explanation:

8 0

2 years ago

What is the area, in square centimeters, of the shape below? 3.7 cm 5.8 cm​

What is the area, in square centimeters, of the shape below? 3.7 cm 5.8 cm