A yacht P left port and sailed 45 km on a bearing of 290°. Another yacht Q left the same port but sailed for 50km on a bearing of 040°.
a )What was the angle between their directions?
b )How far apart were they at that stage (correct to two decimal places)?

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)

you have to put the graph on here with the question

step-by-step explanation: