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3 years ago

Find the solution to this equation 9x^2+9x-4=0

Mathematics

1 answer:

mojhsa [17]3 years ago

4 0

Answer:

x= 1/3 , -4/3

Step-by-step explanation:

9x^2 + 9x -4 =0

(3x-1) (3x+4) =0

x= 1/3 , -4/3

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A model airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. The h

Law Incorporation [45]

H=-16t^2+56t+1, the airplane is shot up from a platform 1 foot above the ground, so 1= - 16t^2+56t+1, we solve this equation
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Can I get an explanation on how to do this?

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What is the cube root of 27a12

satela [25.4K]

Answer:

$3a^4$

Step-by-step explanation:

Given expression is $27a^{12}$ .

Now we need to find the cube root of given expression $27a^{12}$ .

$\sqrt[3]{27a^{12}}$

$=\sqrt[3]{3*3*3a^{4*3}}$

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3 years ago

Solving Rational Equations. LCD Method. Show work.<br><br><img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5x%7D%20%2B%5Cfrac%

Svet_ta [14]

using the LCD method.... well, there are a couple of ways, but let's simply add them up.

well, the denominators are 5x and 2x... so the only LCD will just be 10x, since it's divisible by both, so let's use that one.

$\bf \cfrac{2}{5x}+\cfrac{7}{2x}=1\implies \stackrel{\textit{LCD of 10x}}{\cfrac{(2)2~~+~~(5)7}{10x}}=1\implies \cfrac{4+35}{10x}=1\implies \cfrac{39}{10x}=1 \\\\\\ 39=10x\implies \cfrac{39}{10}=x\implies 3\frac{9}{10}=x$

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4 years ago

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Help?????? please!!!

Dmitrij [34]

Its hard but you can look it up on google

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