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1st way: 12 x 21 = 252/2 = 126

Or 2nd way: 21/2 = 10.5 x 12 = 126

126. Think of problems like these as 12/1 times 21/2. 12 times 21 would be 252 and 1 times 2 would be two. This would leave you with 252/2. When simplified, 252/2 is 126.

f(4) = 3x3x3x3 = 81

so on the XY graph you place a dot at point (4,81) i.e., where x=4, y=81

now do the same for another half dozen or so points, then join the dots with a smooth curve.

I'm uncertain whether the wording is hinting that you should venture into negative integer x values. Perhaps extend to negative values ony after you have plotted it for positive integer x values.

No prob....I thought you might have meant your answer for another question.......

Sorry wrong post.

Now that you have the equation you can multiply instead of divide by multiply the resipricle of 3 which is 1/3. 

So 3/2 * 1/3 = 3/6 = 1/2. 

So the answer is 1/2.

The surface area of a sphere is given by

S_a  = 4 * pi * r^2   =  4 * pi * (20000001)^2  sq units  ......I'll let you finish this.....

We can use the sine inverse to find this....so we have

asin(.42) = A = 24.83 degrees   ....this could also be a 2nd quadrant angle = (180 - 24.83) degrees = about 155.17 degrees

Thanks for that website reference, Rampager1998....however, I think this question involves some trig.......

tan(B)=0.6249     ...to find this angle use the tangent inerse....so we have

atan(.6249) = B = about 32 degrees  ... note that this could also be a 3rd quadrant angle. i.e., about 212 degrees.

Just plug in 34/8 on the calcualtor.

Just on the calculator plug in 76/35=

Using the example that you provide it.

Do the same thing as if you there was an equal sigh instead of a greater than sign. 

So first you have too divide each side by 2 on the problem. 2y = 14

                                                                                     2  = 2 

                                                                                     y  = 7 

                                                                                     y  > 7

So that is how you solve that problem. So you can use the equal sign as a replacement. 

Some correct me if i am wrong plz.

-x/6 -8 = 0

-x/6 = 8

-x = 48

x = -48 because - -48 = 48

I think?

u divide ur answer they gave you by the other amount on the triangle. then divide by 1/2

math is a series of number and variables in most cases, nothing special about math really. Just takes pratice and lots of doing, never a way to study... Just try to remenber the formulas and form it is written in and keep working out the equations, also try to view examples online, and sooner or later it will seem to get easier or less complicated.