Answer:
B 3
Step-by-step explanation:
We can use the secant-secant formula:
(whole secant) x (external part) =
(whole secant) x (external part)
9 * 4 = 12 *x
36 = 12x
Divide each side by 12
36/12 =12x/12
3 =x
1) Vector representation
a) 150 miles west = -150 i
b) 220 miles S68.93W
sin(68.93) = x/220 ==> x = 220[sin(68.93)] = 205.3
cos(68.93) = y/220 ==> y = 220[cos(68.93)] = 79.1
==> 220 miles S68.93 = -205.3 i - 79.1 j
c) Vectorial addition
r = -150i - 205.3 i - 79.1 j
r = -355i - 79.1 j
d) module
|r| = √[(350)^2 + (79.1)^2] = 370
Answer: 370 miles
Step-by-step explanation:
First car.
0.2 gallons used for 7 miles.
Distance drive on 1 gallon of gas
Second car.
0.5 gallons used for 12 miles.
Distance drive on 1 gallon of gas
Third car.
0.9 gallons used for 25 miles.
Distance drive on 1 gallon of gas
So, the first car traveled fast while the second car traveled least. Hence, the sequence is first car > third car > second car.
Answer:
N
Step-by-step explanation:
n has both s and u
m has only u
p has only s