Sydney drove 322 miles in 7 hours . On average , how fast did she drive , in miles per hour ?

46mph

Step-by-step explanation:

To find miles per hour all you need to do is divide the miles traveled by hours

322/7 = 46

46mph

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,