Since the Power is directly proportional to the velocity, their ratio
is constant.
<span>Therefore </span>
which is a proportion:
500 : 1000 = x : 1728
that can be easily solved:
x = (500×1728)/1000 = 864kW
A should be the right answer because 4*5/4=5 + 5*2=10 and 5+10=15.
To answer the question above, we let s be the cost of a shirt and h be the cost of each hat such that the equations that would best represent the given are:
10s + 20h = 490
20s + 30h = 860
The system of equations is the answer to the first question and the values of s and h are $25 and $12, respectively.
Answer:
Step-by-step explanation:
Answer:
A.6.2i-4.2 j
Step-by-step explanation:
We are given that
We have to find the projection of w on to u.
The project of vector a on b
=
Using the formula
The projection of w on to u
The projection of w on to u=6.2i-4.2j
Hence, option A is true.
