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(4x+2) / (x^2-3x+2)

\(=\frac{(4x+2) }{ (x^2-3x+2)}\\ =\frac{2(2x+1) }{ (x-1)(x-2)}\\ \mbox{You cannot divide by zero so } \\ x-1\ne0\qquad and \qquad x-2\ne 0\\ x\ne1\qquad\qquad and \qquad x\ne 2\\\)

a. The number(S) for which the rational expression is underfined is/are x=1 and x=2

Perhaps you can try to do the other ones yourself :)

This will be undefined when the denominator = 0 

That is, when 

x^2 -3x + 2 = 0    

factor

(x - 2) ( x - 1)  = 0

And setting each factor to 0,  x = 2   and x = 1

And these are the values that make the rational function undefined.

the square root of 49 would be 7 because 7*7=49

the square root of 121 would be eleven because 11*11 is 121

What kind of answer are you looking for? That is a correct statement. 

2.5>x>(24/5)

find the cumulative area of P(z<4.87)

Very close to 1

I'd expect tht to be correct to at least 5 sig figure

I am basing this on the fact that  P(z<3) = 0.9985    approx

Do you need more accuracy?

[(7³ + 86) • (5/8 ÷ 9/14)] • [(16² • 2) + (235 - 32)],

[429     X       0.9722..]     X     [512    +    203]

     417.0833....                 X           715

= 298,214 7/12     

You can easily convert percents to a multiplication by dividing the percent by a hundred. So if you want 25% of 80, then it would be \(80 \times (25/100) = 80 \times 0.25 = 20\)

A percent is just a number out of a hundred, so  for example 19% is \(\frac{19}{100} = 0.19\)

On the front (question) page of the forum it is 2x as well!  

I mean where all the questions are.  :/

298214.5833........[repeating 3s]

thanks

Yep....I noticed that the "copy and paste" function can't distinguish between exponents and non-exponential numbers....it treats all of them as non-exponential  [ unless, of course, you use the " ^ "  symbol ]

750 - 750 (.13) = 652.5

Thanks Chris :)

sin2x+sinx=0 

that is interesing

When i copied and pasted the question into my post the position of the 2 changed !

I didn't know that happened.  !!

How annoying!

HEre watch this and LEARN !!

https://www.youtube.com/watch?v=O8ezDEk3qCg

Google the term "Periodic Table" and choose one that has all the info that you need to fill in your table.

OK....here's one

Triangle ADC is contained within triangle ABC.....prove that angle ADC >  angle ABC

[Hint:  draw an altitude from B through D......  ]

4 1/3 +8 3/4 ÷5 1/4

We need to perform the division, first......

Note     8 3/4   =  35/4      and  5 1/4   =   21/4

So

35/4  /   21/4      =

35/4 * 4/21   =  

35/21 * 4/4  =

5/3 *  1  =

5/3  =  1+ 2/3

Now, add

4 1/3  + 1  2/3  =

4 + 1 + 1/3  + 2/3  =

5 + 3/3  =

5 + 1  =

6

Since the  47.1 cm is the circumference of a circle, we can find the radius thusly:

47.1 = 2 * 3.14 * r   =  6.28 r    solve for r

r =  [ 47.1 / 6.28  ]    cm

So....the area covered  is =

pi * r^2  =

3.14 *  [ 47.1 / 6.28]^2  = about 176.63 cm^2

2sin²x + sinx   =  0         factor out sin x

sinx [ 2sinx + 1]  =  0     set both factors  =  0

sin x  =  0       and this happens at 180 °  on   0 > x > 360

And

2sin x  +  1  = 0        subtract 1 from both sides and divide both sides by 2

sinx = -1/2      and this happens at 210° and at 330°  on the interval of interest

I was feeling a little "devilish",..........

Bruh

twelve