Expand the following: (3 x+4) (x-1)
(3 x+4) (x-1) = (3 x) (x) + (3 x) (-1) + (4) (x) + (4) (-1): 3 x x+4 x-3 x-4
3 x x = 3 x^2: 3 x^2+4 x-3 x-4
4 x-3 x = x: Answer: | 3x^2 + x - 4
I skimmed over it and it seems just what I was looking for, it even has exercises!
I will read it thoroughly now. Thank you very much!
tan x = 3/5 .......we can find x using the tangent inverse [arctangent]
arctan (3/5) = about 30.96°
Here is some good info on this [ I hope it's not too "technical" ]
http://www.math.ubc.ca/~bwallace/maths100_180_taylor_notes.pdf
Indeed........we are not limited to expansions only around 0, as some of the examples show.......!!!
x*exp(x) = 5
x=1.3267246652422..........etc. Iteration is used to find the answer. There is no direct solution.
what is the circumference if the radius is 4
Diameter =Radius x 2
Circumference=Diameter x Pi
C=4 x 2 x 3.141592
C= 25.132736
Why don't you do it yourself? Are you too lazy, or too busy playing video games?
Because you have to study and understand "complex numbers".
It comes from the expansion of this infinite series:∑(πi)^n / (n!), by L. Euler.
It is not clear what you want. Is this proprtionality? That is, 240/x:3/20??????. If so, then:
x=20/3 x 240 =1,600.
y is common to all:
y(5xy + 2x + 7)
you can't just have /:3 sitting in there. you need a number before the ratio symbol
VolumeB = VolumeA*SurfaceB/SurfaceA
VolumeB = 2500*62.5/1000 cm^3
9-3:1/3+1=9
the equation is y2+y2=x so we can simplify it to 2y2=x and then to 2=x/y2 and then to 2y=x/y bur we don't need to do this because since this equation has two variables it's impossible
Here's something to keep you occupied
\(x(2x+3)-4x(3+1)+7(x+(2-1))=15 so-what-does-x-equal?\)
"E" here stands for "Exponent", which means "power of 10" The "+" means that "Exponent" is positive.
Your question does not make sense!!. Write it clearly as fractions like this: 2 3/8 + 3 5/9.
14.083333333333...
How about : 97 + 10 =107
Did you mean "square foot"?
If you want the units in square feet, the 1 x 1=1 square foot.
If you want it in inches, then: 1 foot=12 inches, so 1 square foot in square inches would be:
12 x 12 =144 square inches = 1 square foot.
