√144-(16-5x2)² Please Help :)

-24

Step-by-step explanation:

√144 = 12

(16-5x2) = 6

12 - 6² = 12-36 = -24

please comment if there are sub-steps that need further clarification!

-24

Step-by-step explanation:

To solve this we will have to deal with the bracket first

√144-(16-5×2)^2

Bracket first

(16-5×2)^2

Bodmas rule

Multiplication comes before substration

(16-10)^2

(6)^2

36

Back to the question

√144-36

12-36

-24

Therefore the final answer is-24

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

answer: need a picture

step-by-step explanation: