Answer: See steps below for answer
Step-by-step explanation:
1) Set up an equation
- 40 + x + 3x = 180
- 4x + 40 = 180
- 4x = 140
- x = 35
_____
Part 2:
One angle: 40 degrees
Second angle: x or 35 degrees
Third angle: 3x or 105 degrees
Therefore answer is
35, 40, 105
851.415
800 + 50 + 1 + 4/10 + 1/100 + 5/1000
Eight-hundred fifty-one and four-hundred fifteen thousandths.
Answer: The radius of the ball is 7 meters.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Surface area of a sphere: 4 π r^2
Replacing with the value given:
615.75 = 4 π r^2
Solving for r (radius):
615.75 /4π= r^2
√(615.75 /4π) =r
r = 6.99 = 7m (rounded)
The radius of the ball is 7 meters.
Feel free to ask for more if needed or if you did not understand something.
X + y = 4...x = 4 - y
2x + 3y = 0
2(4-y) + 3y = 0
8 - 2y + 3y = 0
-2y + 3y = 0 - 8
y = -8
x + y = 4
x - 8 = 4
x = 4 + 8
x = 12
solution is : (12,-8)