The denominator of the raised fraction is what goes on the outside of the square root. So if you had 2 raised to 1/3, you'd put the 3 raised outside to the left of the radical and the 2 inside. They give the same answer, so if you know one, you can always play with the other until you get the same answer. My teacher told us in Calculus a funny/weird way to remember it is the "bottom (of the raised fraction) goes in the crack (of the radical)." Does this help??
Answer:
248
Step-by-step explanation:
A=height b times base divided by two
which is:
A= 16 times 31 divided by two
This is an aritmetic series;
a=-10
d=-7--10
d=3
n= 7
Sum=
(2a+(n-1)d)
Sum=
sum=3.5(-20+18)
sum=3.5(-2)
sum=-7
