Answer:
D. 49/4
Step-by-step explanation:
Complete the square by squaring half the coefficent of the x term
(-7/2)² = 49/4
Answer:
5√3 miles per hour
Step-by-step explanation:
Throughout their journey, the component of velocity of rowboat B to the east is the same as that of rowboat A:
(10 mph)(cos(π/3)) = 5 mph
Meanwhile, the component of velocity of rowboat B to the north is ...
(10 mph)(sin(π/3)) = 5√3 mph
Since rowboat A is always traveling in a direction that is at right angles to the direction between the boats, it contributes nothing to their relative speed. Since rowboat B is always directly north of rowboat A, its speed to the north is their relative speed.
The distance between the rowboats is increasing at 5√3 mph ≈ 8.66 mph.
Is this what you need 4x/ [5-(2x/3)] ?
If yes, then 4x/[(15-2x)/3] = 4x•3/(15-2x) = 12x/(-2x+15)
Answer:
15 days.
Step-by-step explanation:
1 person : 4 bird houses : 3 days
1 person : 20 bird houses : ? days
from 4 bird houses to 20 bird houses, you multiply by 5.
this means you also have to multiply the days by 5
3*5=15
Jared will have to work for 15 days to make 20 bird houses.
Answer:
is 96
Step-by-step explanation:
its simple hope you do good