We need to add like terms, meaning add the x's together and add the regular numbers together.
So if we add the x's together, -8x+9x = 1x.
Then when we add the numbers together, -12+4 = -8.
Combine our two sums and we get x-8 as the final answer.
A should equal to -3 or -4 depending on whether what the equation is.
For example, if it's (1/9)^(a+1)=81^(a+1) x 27^(2-a), then the answer is -4.
But if it's the other way stated above, then it should be -3.
Hope this helps.
A Cosine ratio is the hypotenuse in a right triangle is always larger than the adjacent side, so for angles greater than zero but less than 90º the cosine ratio will be less than . and the Secant ratio<span> there are three other trigonometric functions you need to know for the Math IIC: cosecant,</span>secant<span>, and cotangent.</span>
Answer:
I think its 8a because in a regular octagon we have 8 sides.
The unit rate price per pound is $3.45.
