All Answers 358116 Answers

Add 55 to both sides.

Divide 5 from both sides.

Take the square root of both sides.

That's it. 

3x^2 + 2 = 11 - x^2

Add x^2 to both sides and subtract 2 from both sides.

Now, it should be easy to solve for x [you will need to square root both sides eventually].

$${\frac{{\mathtt{3}}}{{\mathtt{4}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{3}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{4}} = {\frac{{\mathtt{1}}}{{\mathtt{6}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{7}}$$

$${\frac{{\mathtt{3}}}{{\mathtt{4}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{3}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{6}}}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{4}}{\mathtt{\,-\,}}{\mathtt{7}}$$

$${\frac{{\mathtt{9}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\frac{{\mathtt{8}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{x}} = -{\mathtt{3}}$$

$${\frac{\left({\mathtt{9}}{\mathtt{\,-\,}}{\mathtt{8}}{\mathtt{\,-\,}}{\mathtt{2}}\right)}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{x}} = -{\mathtt{3}}$$

$${\mathtt{\,-\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{12}}}}{\mathtt{\,\times\,}}{\mathtt{x}}\right) = -{\mathtt{3}}$$

$${\mathtt{x}} = {\mathtt{\,-\,}}{\frac{{\mathtt{3}}}{{\mathtt{\,-\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{12}}}}\right)}}$$

$${\mathtt{x}} = {\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{12}} = {\mathtt{36}}$$

You probably gave a wrong equation or the wrong answer, 19 is a prime number and doesn't appear anywhere in the original equation (neither does a multiple of 19). This makes it highy unlikely that a fraction including 19 would be the answer.

5x^2 + 500 = 844.45

Subtract 500 from both sides.

Divide 5 from both sides

Finally, take the square root of both sides.

Now, you have the value of x.

If you're talking about how to create a negative sign on the calculator, you use the $$\pm$$ key.

Simply plug in x = -1 into 5x - (5+2x):

5(-1) - (5 +2(-1))

You can solve it easily now. 

I am studing for my ACT test and these are one of the easist questions to get right if you know the formula.

sqrt((x-x)^2+(y-y)^2

you just input the numbers into the given spaces, but this is how it would look on //web2.0calc.com

If they tell you how many adults are in attendance it only is a matter of minusing the amount of adults by the amount of total people in attendance.

400-136=264

There are 264 students in attendance.

5 to the power or 2 is 25

3*6 = 18

25-18=7

7+1= 8

8 is the final number in the prenthesis 

8*8=64 

Use The PEMDAS

..... Your Welcome

Only one square root- 0.7

one square root for every number

YES! Thank you! ^_^

PEMDAS

Parentheses first

Exponent second

Multiply and Divide third (doesn't matter which of these precedes the other)

Addition and Subtraction fourth (again doesn't matter which of these precedes the other)

So:

-3 + 2*(-1+4)^2     Parentheses

-3 + 2*3^2              Exponent

-3 + 2*9                  Multiplication

-3 + 18                    Addition

15

It's just like adding w/out a decimal...for example 12.45+30.45632

you work the problem like this...

$${\mathtt{30.456\: \!32}}{\mathtt{\,\small\textbf+\,}}{\mathtt{12.45}} = {\mathtt{42.906\: \!32}}$$ 

What I usually do to help me is I have to have an equal number of decimals so that I can read it easier...so I add zeros b/c you can add as many zeros to a decimal w/out changing it's value.

Hope I helped.

The answer is $505.62

2+3=5...did u mean that sarcastically?

Could you expound on your question please...are you asking to add or what?

in this we dont have to do much!we just have to multiply 2 with 5x and 4 so we'll do that like

2(5x + 4)    

=10x + 8  ANSWER

so that simple n easy it was!

I think its 4

let mary got paid £x for 6 hours & alison got paid £y for 2 hours.

For 1 hour marry got £x/6 & alsion got £y/2.

since the wages for 1 hour are same for both of them.

therefore, x/6=y/2 i.e x=3y

it is also given that x+y=40....(i)

3y+y=40  (b'coz x=3y)

4y=40

y=10

from eqn. (i) we get 

x=30

hence, alison got paid £10.

P.S: can't say it's right but i think it is right.

Yes. Weird! 

An integer is a number. hint use ww.google.com. 

@@ End of Day Wrap:    Tues 2/9/14      Sydney, Australia    Time 12:20am (Really Wednesday morning)     ♬

Hi everyone,

There were a of great answers provided today by AzizHusain, CPhill, DragonSlayer554, NinjaDevo, Kitty<3, Heureka, HalleyWoodall17, Honga and Alan.  A big thanks to each of you.  

I see someone gave me a point for my last couple of wraps.  Maybe Dragon?  Thank you, whoever it was.  

Now for the interest threads:

*1) Finding the last 2 digits of a large power or a multiple.   Some very impressive number work here (Thanks Honga)

Wed 3/9/14

* 1) Fractions - Multiplying - Great explanation from Ninja.  

ok thanks Alan 

Use the web2 calculator on the home page.