Help me please I'm a complete mess at maths!

P(0,2)

Q(1/2, 0)

Step-by-step explanation:

For P, set x=0 (that is given!).

y = 2 - 4*0 = 2

For Q, set y=0:

0 = 2 - 4x

4x = 2

x = 1/2

(the two other questions follow quite easily from this answer)

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: