The gcf of 18 and 42<span> is the largest positive integer that divides the numbers </span>18 and 42<span> without a remainder. Spelled out, it is the </span>greatest common factor of 18 and 42<span>. Here you can find the </span>gcf of 18 and 42<span>, along with a total of three methods for computing it.</span>
Answer:
b) 1.3 units
b) 22.61° East of North
Step-by-step explanation:


Magnitude of vector AB is 1.3 units

The direction of vector AB is 22.61° East of North
Answer:
Solution given:
sin y = -4/5
p/h=4/5
p=4
h=5
b=√{5²-4²)=3
cos y = b/h=-3/5
again
cos x=12/13
b/h=12/13
b=12
h=13
p=√(13²-12²)=5
sin x=p/h=5/13
now
sin[x-y]=sinxcosy-cosxsiny
=5/13×-3/5-(12/13×-4/5)=33/65 is your answer.
Answer: Lets divide by 8. My god, those coefficients are large.
x^3 - 8x^2 + 20x - 16 = 0
Possible integral roots are: +1, -1, +2, -2, +4, -4, +8, -8
If x = 2, f(x) = 8 - 32 + 40 - 16 = 0
Hence, x-2 is a factor.
Use synthetic division to get: x^2 - 6x + 8 = (x-4)(x-2).
Therefore, there are two integral roots: +2 and +4.
Step-by-step explanation: