Kara is a stunt driver. One day, during a stunt where she escaped from a cave about to collapse, she drove at a constant speed to get to the safe zone that was 160 meters away. After 3 seconds of
driving, she was 85 meters away from the safe zone. Let y represent the
distance, in meters, to the
safe zone and x the time measured, in seconds. Which of the following represents the function as a
linear equation?
Hint: Create a table of x and y values first.
O y=-25x + 160
O y = 25x
O y = 25x + 160
O y = 85x + 160

a. the are of the rectangle is 18.25

b. 18.25 times two is 36.50

rae me : d

answer: 72: 111

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west