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You wouldn't use the quadratic formula to do that. Technically, the Milky Way grows every day, so there is no 100% exact measurement. I would go with guest's estimation of 100,000 light-years or so.

log(75/16)-2log(5/9)+log(32/243)=log(2) = {} A.K.A. it doesn't.

Instead of using tan^-1, use atan. It works the same.

Area of a circle: π*r²

π*6.56^2 = 135.1940416175217263

Round to 2 decimal points.

π*6.56²≈135.19

So, the area of the circle is 135.19 m².

5*4*3 1\2

\(\begin{array}{rcll} 5\cdot 4 \cdot 3~ \frac12 &=& 60\ \frac12 \\ &=& 60+\frac12 \\ &=& 60.5 \\ \end{array}\)

Forget that!!!.

Our galaxy- The Milky Way- is estimated by astronomers to be about 100,000 light-years from one end to another.

what is the formula for the volume of a sphere with diameter d?

r = Radius

d = diameter

\(\begin{array}{rcll} V &=& \dfrac43 \cdot \pi \cdot r^3 \quad & | \quad r = \dfrac{d}{2}\\\\ V &=& \dfrac43 \cdot \pi \cdot \left(\dfrac{d}{2} \right)^3 \\\\ V &=& \dfrac43 \cdot \pi \cdot \dfrac{d^3}{2^3} \\\\ V &=& \dfrac43 \cdot \pi \cdot \dfrac{d^3}{8} \\\\ V &=& \dfrac13 \cdot \pi \cdot \dfrac{d^3}{2} \\\\ V &=& \dfrac16 \cdot \pi \cdot d^3 \\\\ && \boxed{~ \begin{array}{rcll} V &=& \dfrac{\pi}{6} \cdot d^3 \end{array} ~} \end{array}\)

Radius=Diameter/2

Volume of Sphere=4/3 x Pi x Radius^3

Thank you so much CPill & Melody! 

I completely agree with you, sir.

omg you spelled real wrong!

I believe the answer is pi divided by the meaning of life over pizza.

5*4*3 1\2=5 x 4 x 3 1/2 =70

In functions, it is written like this: f(x), and you pronounce it:  f "of" x.

In a aeroplane there are 31 rows of economy seats there are 6 seats in each row. There are 36 seats in bisness. All the seats are taken work out the over all cost Bisiness = 399£ Economy = 199£

Economy class: 31 x 6 x 199 =37,014 pounds-cost of economy class.

Business class:  36 x 399 =14,364 pounds-cost of business class.

Total cost =37,014 + 14,364 =51,378 pounds.

solve for m? y=mx+b??

\(\begin{array}{rcll} y &=& mx+b \quad & | \quad -b \\ y-b &=& mx \quad & | \quad :x \\ \dfrac{y-b}{x} &=& m \\ m &=& \dfrac{y-b}{x} \end{array}\)

Simplify the following:
a b+c d-a c-b d

Factor terms by grouping. a b+c d-a c-b d = (a b-a c)+(c d-b d) = a (b-c)-d (b-c):
a (b-c)-d (b-c)

Factor b-c from a (b-c)-d (b-c):
Answer: |  (b-c) (a-d)

Holy heck

Did you forget something??.