All right, so let's start with a basic equation. A percent increase on a number <em>n </em>can be represented by n(1+x) where x is the percent increase. So if there's a percent increase of 50% on 4 objects, then it'll be 4(1+0.5) = 4(1.5) = 6.
a) Set up: 1650 = 1500x
x = 1.1. The percent of increase is 1.1 - 1 = 0.1 = 10%.
b) 1500(1.99) = 2985
These are the answers I got, but it is always helpful to double check work. Hope this helps!
I think it would be 40. 28-2(6) = 16/4 = 4. 4 * (6+10) = 40.
A - when doing a 180 degree rotation, the coordinates (x,y) would become (-x,-y), in other words, the inverse of the numbers in the x and y places, (-1,2)->(1,-2)
B - when reflecting over the x axis, only the y coordinate inverts, (x,y) becomes (x,-y), (1,-2)->(1,2)
In this problem, we are dealing with simplifying expressions with exponents in the denominator. When we have exponents in the denominator, one thing that we want to be sure of is that there are not any negative exponents and that the numerators and denominators are completely simplified.
Our expression is 5/x^-2y^5
The first thing we notice is that we have a negative exponent in the denominator. This is easily solved if we switch the term with the negative exponent into the numerator.
Our expression now looks like this: 5x^2/y^5
Now, there aren't any other terms that cancel out, so our simplified expression is 5x^2/y^5.
