3 years ago

Evaluatethe expression 6x2-3x+1 for x=-2

Mathematics

1 answer:

Ad libitum [116K]3 years ago

4 0

Answer:

Step-by-step explanation:

6(-2)^2 - 3(-2) + 1

6(4) + 6 +1

24 + 6 + 1 = 31

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The sum of two negative integers is a negative integers

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1 year ago

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3 years ago

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A food pantry is making packages. Each package weighs 82 pounds. For the situation, write an equation to represent the situation

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2 years ago

What numbers are zeros of g(x) = x^2 - 2x - 4? take your time if you need to!

ipn [44]

Answer:

$x = 1 + \sqrt5, x = 1 - \sqrt5$

Step-by-step explanation:

Hello!

We can solve the quadratic by using the quadratic formula.

Standard form of a quadratic: $ax^2 + bx + c = 0$

Quadratic Formula: $x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}$

Given our Equation: $g(x) = x^2 - 2x - 4$

a = 1
b = -2
c = -4

Plug the values into the equation and solve.

<h3>Solve</h3>

$x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}$
$x = \frac{-(-2)\pm\sqrt{(-2)^2 - 4(1)(-4)}}{2(1)}$
$x = \frac{2\pm\sqrt{4 +16}}{2}$
$x = \frac{2\pm\sqrt{20}}{2}$
$x = \frac{2\pm\sqrt{4 * 5}}{2}$
$x = \frac{2\pm(\sqrt4 * \sqrt5)}{2}$
$x = \frac{2\pm2\sqrt5}{2}$
$x = 1 + \sqrt5, x = 1 - \sqrt5$

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2 years ago

PLEASE HELP !!!! A box of 6 golf balls costs $7.32. At that rate how much will a box of 15 golf balls costs?

vazorg [7]

7.32/6=1.22
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The golf balls will cost $18.30

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3 years ago

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