50/sin41 multiply sin49
=57.5
Answer:
c
Step-by-step explanation:
ur welcome
The correct option is (2)
For any quadratic equation: ax2 + bx + c = 0.
The complex roots are expressed in the form a ± bi.
where a is the real part
& b is the imaginary part.
Since, one root is √7 + 5i, therefore the other root will be of the form <span>√7 - 5i.
Hence, option (2) is correct.</span>
Answer:
Step-by-step explanation:
The time (minutes) vary directly with the number of walls and inversely to the number of people.
m = kw/p, where m = minutes, w = walls, and p = people
60 = 5k/7
420 = 5k
84 = k
m = 10(84)/10
m = 84
Answer:
y=1/2x-3
Step-by-step explanation:
1) Find slope... (y2-y1)/x2-x1–> (-4-(-1))/-2-4=-3/-6=1/2
2) Pick a coordinate and plug into equation y-y1=m(x-x1)—> y-(-1)=1/2(x-4)
3) Simplify to make y alone —> y=1/2x-3