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2 years ago

True or False

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

3 0

Answer:

The answer is true

Step-by-step explanation:

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dolphi86 [110]

Answer: d

Step-by-step explanation: you just divie them and mutip hehe

sorrt i hope this help =)

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3 years ago

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Rob has 7 ones, nick has 5 ones.they put all their ones together.what number did they make?

Anni [7]

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3 years ago

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What is the circumstances of a circle that has a diameter of 15

zheka24 [161]

C=(3.14)(15)
you multiply and get 47.1

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2 years ago

What is the area of this trapezoid? { Please answer ASAP , I need it now! }. A= h(b1+b2) then divide by 2

OlgaM077 [116]

Answer:

30in squared

Step-by-step explanation:

(4x5) + ((4x3)/2) + ((4x2)/2) = 20 in sq.

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3 years ago

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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3 years ago