For the answer to the question above asking to r<span>esolve the car's velocity vector (in 2-space) into components if the car is traveling in each of the following directions. The units are km/hr, but
</span>east: 60i + 0j
<span>south: 0i - 60j </span>
<span>SE: (30√2)i - (30√2)j </span>
<span>NW: (-30√2)i + (30√2) </span>you do not need to enter units.
Total number of members = 12
Members to choose at a time = 2
This is a combination problem and we are to find the combination of 12 objects taken 2 at a time i.e. we are to find 12C2
12C2 = 66
So, there are 66 ways of selecting a president and vice president.
Therefore, the correct answer is option D
Answer:
x=5 twice
Step-by-step explanation:
x^2-10x+25=0
multiply the coefficient of x^2 and the last term
1X25=25
find two numbers you can multiply to get 25 and add to get -10
-5 + (-5)=-10 the middle term
replace -10x with -5x -5x and solve the equation
x^2-5x-5x+25=0
factorise by grouping
x(x-5)-5(x-5)=0
(x-5)(x-5)=0
Either x-5=0,x=5 or x-5=0,x=5
Therefore x=5 twice.
Answer:
3
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
·
×
=
=12
