Answer:
A cross section is the intersection of a figure in three-dimensional space with a plane. A cross section is the face you obtain by making a "slice" through a solid object. A cross section is two-dimensional. We see cross sections in everyday life.
Answer:
f(2) =8
Step-by-step explanation:
f(2) Is when n=2
f(2) = -5 *f(2-1) -7
f(2) = -5 *f(1) -7
We know that f(1) = -3
f(2) = -5 *-3 -7
= 15 -7
= 8
9514 1404 393
Answer:
Step-by-step explanation:
Let x represent the amount invested at 8%. Then the total interest earned is ...
0.06(7000 -x) +0.08x = 480
420 +0.02x = 480 . . . . . . . . . eliminate parentheses
0.02x = 60 . . . . . . . . . . subtract 420
x = 60/0.02 = 3000 . . . . . divide by the coefficient of x
$3000 was invested at 8%; $4000 was invested at 6%.
