Answer:
9
Step-by-step explanation:
3*3 =9
base = 3*3 = 9 sq. in.
side = 1/2 *3*6 = 9 sq. in.
4 sides x 9 = 36 + 9 (base) = 45 in^2
Answer is A
I don't understand your language and I don't know which language is this but I try to answer your question. 3-1000-3*100*4*1
3-1000-1200
3-2200
=-2197
Answer:
7 Units.
Step-by-step explanation:
First of all, you could just count the units, but that's not really too effective. Otherwise, you could start from the coordinates of the "C" point, and see how it's at -Y = -5. Therefore, to get to the line separating the two points, you would have to subtract 5 from 5 to get to the line. Now, you look at point "A". It's Y coordinate is 2. Therefore, adding 5 and 2 together gives you 7 units.
Answer:
Maria did her job properly. Both gears are perpendicular.
Step-by-step explanation:
Recall that given vectors a and b, they are perpendicular if and only if 
=0. If 
. Then 
.
IN our case a=(5,-1,2) and b) (1,-3,-4). So,
So both gears are perpendicular.
