Good day dear friends today I shall need your help, What statement makes the open sentence 12 + 3x = 30 true?
Show all work.
A. X = 3
B. X = 5
C. X = 11
D. X = 15

I got an answer of six (6) sadly

12+3x=30

3x=30-12

3x = 18

...divide both sides by 3

3 3

.°. x=6

step-by-step explanation:

bob the banana

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