The answer is 25. Simply use Pemdas to figure out what order to do the problem in. To check your work, a calculator is always a good option.
One divided by negative one is written as 1/-1. This is the same thing as -1/1. The reason to write it the second way is because anything divided by 1 is itself. So the answer is -1.
It is 1 over r squared, or r to the negative second power.
It is negative one divided by 4 multiplied by x to the power of 1.5 -1/(4(x^1.5))
0.8 divided by 10 to the second power = 0.08
A second is divided into milliseconds and there are 1000 milliseconds in a second.
1/36
Add the second negative to the first negative, so -1 - -2 = 1
-19/9. When you have a fraction divided by a fraction, you multiply the first fraction by the second fraction flipped over (switch the numerator and denominator). The sevens cancel out, and you are left with -19/9.
12 divided by 3 to the second power with work = 4
The Cartesian plane is divided into four quadrants. These quadrants are determined by the signs of the x and y coordinates: the first quadrant (positive x, positive y), the second quadrant (negative x, positive y), the third quadrant (negative x, negative y), and the fourth quadrant (positive x, negative y).
Anything divided by one is not changed.
486