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4 years ago

What is the product of 3x(x^2+4)

Mathematics

1 answer:

Butoxors [25]4 years ago

3 0

<span>3x(x^2+4)
= 3x^3 + 12x

hope it helps</span>

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3) Solve each equation using the quadratic formula. Show<br> a. x2 – 3x – 10 = 0

Naya [18.7K]

Answer:

Step-by-step explanation:

The quadratic formula of a quadratic equation

$ax^2+bx+c=0\\\\\text{If}\ b^2-4ac>0\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\text{If}\ b^2-4ac=0\ \text{then the equation has one solution}\ x=\dfrac{-b}{2a}$

$\text{If}\ b^2-4ac$

We have:

$x^2-3x-10=0\to a=1,\ b=-3,\ c=-10\\\\b^2-4ac=(-3)^2-4(1)(-10)=9+40=49>0\\\\x=\dfrac{-(-3)\pm\sqrt{49}}{2(1)}=\dfrac{3\pm7}{2}\\\\x=\dfrac{3-7}{2}=\dfrac{-4}{2}=-2\\or\\x=\dfrac{3+7}{2}=\dfrac{10}{2}=5$

5 0

3 years ago

It's in the screenshot, please help, there's other questions to if you can help

frozen [14]

The probability is 3.56%
it’s in the table lol

4 0

3 years ago

What is the result of (x^2 – 10x) – (–5x^2 + x)?

Tanzania [10]

Answer:

$( {x}^{2} - 10x) - ( - 5 {x}^{2} + x) \\ {x}^{2} - 10x + 5 {x}^{2} - x \\ \boxed{6 {x}^{2} - 11x}$

<h3>(6x²-11x) is the right answer.</h3>

6 0

3 years ago

Answer this!!!!!!!!!

muminat

Surface area = area of 2 triangular sides + area of the roof + area of the base.

= 2 * 1/2 * 6 * 4 + 2 * 5*7 + 6 * 7

= 24 + 70 + 42

= 136 units^2

8 0

4 years ago

I’ll give brainliest.

disa [49]

Answer:

-0.89, 4/10, 1/2, 9/8, 2

Step-by-step explanation:

8 0

4 years ago