Answer:
Step-by-step explanation:
C is the answer i think
Answer:
12a³+2a²+23a+18
Step-by-step explanation:
(3a+2)(4a²-2a+9)=
12a³-6a²+27a+8a²-4a+18=
12a³+2a²+23a+18
If you need more explanation, reply to this answer.
i may not know how the triangle looks like but i assume that its a right angle triangle.
if we want to find the missing length example hypotenuese.. 3 is adjacent and 6 is opposite. Then use the formula:
c²= a²+b²
c²= 3²+6²
c²= 45
c= √45
c= 7 (nearest tenth)
hope this helps
Answer:
73.2km
Step-by-step explanation:
first you have to decompose 46 km into y and x components.
x=sin40°*46km
x=0.64*46km
x=29.44km
y=cos40°*46km
y=0.76*46km
y=34.96
now you add the y components together
32+34.96=66.98
finally use Pythagorean thereom to find the resultant vector.
a*a+ b*b=c*c
66.98*66.98+29.44*29.44=c*c
c*c= 4486.3+866.7
c=√5353
c=73.2 km this is the approximate value
