5. you have to put it in a formula with sin
the result is about 63.4293
6. divide it into five triangles and find area of each of them. a=bh/2
A=10•6/2=30
30•5(triangles)=150
Answer:
2c + 8
Step-by-step explanation:
Apply the Distributive Property of Multiplication:
(c + 4)(2) = (2)(c + 4) = 2c + 8
Answer:
x=-0.688
Step-by-step explanation:
-2496-3744x+36 = -759x-414-10x
-2460-3744x = -769x-414
-2975x = 2046
Answer:
...
against the wind, an airplane travels 3640 km in 7 hours.
with the wind, the same plane travels 6000 km in 6hrs.
...
let speed of plane in still air be x mph
speed of wind be y mph.
..
t=d/r
..
against wind speed = x-y mph
with wond speed = x=y mph
...
3640/(x-y)=7
3640 = 7x-7y
/7
520=x-y.....................1
...
6000/x+y = 6
6000 = 6x+6y
/6
1000=x+y.....................2
...
Add (1) & (2)
2x=1520
/2
x=760 mph speed of plane in still air
...
plug value of x in 2
1000=760+y
100-760=y
240 = y
240 mph speed of wind
108 is the answer for this question
