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-x^2 + 2x+4     use quadratic formula to find    x = 1+- sqrt5   

                                   Use these values of 'x' in the second equation to find the corresponding 'y' points

I'm not sure if I read this correctly, but let me try to help you. 

We can reword the question above as '3+5=8'. Now, replace 3 and 5 with y and b. What do you get? y+b=8.

:)

Find the terms that result in an x^2

x^2 *7      +      2x^2 *4     + (-3x)(ax)   =   + 30 x^2

15  x^2   - 3ax^2   = 30 x^2

15 -3a = 30

a = -5

Second one   Just divide   (x-1)   into   3x^4 x^3 -25x^2 + 38x -17    via synthetic or longhand division to find (f(x)

t^2 - 9t - 36 factors to (t+3)(t-12).

The smallest value would be -3. Please correct me if I'm wrong or if I misunderstood your question 

If the link does not work (it works for me!), copy and paste your question into the "search" bar at the top. Then, it will bring you to a google page. From there, just press enter (or whatever key you use), and you will end up with a whole page of web2.0 answers to your question! 

:)

(You can PM me for a more in depth explanation if you'd like!)

Have you thought about these questions? 

The answers are right on the page. Bisectors are the main thing you need to understand to get the answer right (as, these questions are not that hard) so here is a place you can learn from: https://www.mathopenref.com/bisector.html

If you are in calculus:

1)  lim f(x)  as  x→infinity = 1

     lim f(x)  as  x→-infinity = 1

2)  find the first derivative (quotient rule): 

            f'(x)  =  ( -12x² - 12x + 24 )  /  ( (x² + 2x + 3)² )

3)  set the first derivative equal to zero and solve:  x = -2     x = 1

4)  put these two values for x back into f(x) and find the y-values; these will give you the 

     maximum and minum y-values; therefore, you have the range.

If the power is divisible by 2 and not 4, it is -1.

If the power is divisible by 4, it is 1.

If it satisfys none of those conditions, it is i or -i.

(basically, it is a pattern of i, -1, -i, and 1)

So, let's see what i^11 is. By running down the list, it satisfys only -i. Which means, i^11 is -i.

i^16 is divisible by 4, so it is 1.

Keep on going like this until you have the answer!

:)

\(x^3+8=x^3+2^3\)

The formula for the sum of cubes is \(a^3+b^3= (a + b)(a^2 – ab + b^2)\). You should be able to do the rest within a few minutes.

My favorites! So we know that in a fraction, the denominator can never be 0. So x^2+2x+3 can not be equal to 0 and range is basically what numbers can be the output. Hopefully, that gets you started.

4/25     16%   is incorrect?    

Find y if the point (-6, y) is on the line that passes through (-1, 7) and (3, -2).

https://web2.0calc.com/questions/some-more-questions#r1

https://web2.0calc.com/questions/i-m-confused-about-this

sorry for me it says that the link doesnt work

a) The fourth root of 81 is 3 because 3 to the fourth power is 81.

This problem was already solved

https://web2.0calc.com/questions/find-the-value-of-b-a-if-the-graph-of-ax-by-3-passes

Let's say that the original number of visitors is 1000.

An 800% increase is 8.00 x 1000  =  8000, for a total of 9000 visitors.

In what year were there 9000 visitors?

in 2003:  1000.

A 150% increase is 1.50 x 1000  =  1500, for a total of 2500 visitors.

So, in 2005, there were 2500 visitors.

A 150% increase is 1.50 x 2500  =  3750, for a total of 6250 visitors.

So, in 2007, there were 6250 visitors.

A 150% increase is 1.50 x 6250  =  9375, for a total of 15625 visitors.

So, in 2009, there were 15625 visitors.

Probabily, sometime in 2008, there were 9000 visitors.

angle(x)  =  ½·( arc(CD) + arc(BE) )  =  ½·( 108 + 105 )  =  106.5

angle(y)  =  ½·( arc(BC) - arc(DB) ) 

arc(BC)  =  arc(BE) + arc(EC)  =  105 + 81  =  186

arc(DB)  =  360 - arc(DC) - arc(CE) - arc(EB)  =  360 - 108 - 81 - 105  =  66

angle(y)  =  ½·( arc(BC) - arc(DB) )  =  ½·( 186 - 66 )  =  60