For these kinds of expressions use FOIL (first, outside, inside, last).
-2x • 9x = -18x^2
-2x • -3y = 6xy
8y • 9x = 72 xy
8y • -3y = -24y^2
Now combine them all:
-18x^2 + 78xy - 24y^2
3(.80)+1.20= 3.60
3.60+1.40= 5
Annette gave the clerk $5
Answer:
No.
Step-by-step explanation:
If they do intersect, the measurement of the angles they form is a half the difference of the intercepted arcs; both of the intercepted arcs would measure 180 degrees.
Answer:
10
Step-by-step explanation:
0.4*25
