1(x + 3) + 3(x - 1) = 20
1(x) + 1(3) + 3(x) - 3(1) = 20
x + 3 + 3x - 3 = 20
x + 3x + 3 - 3 = 20
4x = 20
4 4
x = 5
Answer:
D
Step-by-step explanation:
Okay so the ∠2 = 40deg. That means ∠2 + ∠6 = 180
∠6 = 180 - 140
Same goes for ∠1, ∠1 + ∠2 = 180, ∠1 = 180 - 40 = 140
∠1 + ∠6 = 140 + 140 = 280degrees = Ans D
Answer: 12 feet.
Step-by-step explanation:
Use the Pythagorean theorem to solve:
The third side length is 12.
Step-by-step explanation:
STEP 1
Calculate the slope from 2 points.
STEP 2
Substitute either point into the equation. You can use either (3,7) or (5,11)
STEP 3
Solve for b, which is the y-intercept of the line.
STEP 4
Substitute b, -1, into the equation from step 2.
Answer:
52 minutes because if you write the problem out on a peice of papaer it will make sense
