Answer:
i -4x - 2
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
0 . 0 0 0
whole Tenths Hundredths Thousandths
Y = 2x - 2
x + 3y = 15
I'll do substitution by solving for y:
y = 2x - 2
Solve for y for the second equation:
y = 5 - x/3
Substitute:
2x - 2 = 5 - x/3
Add x/3 to both sides:
7x/3 - 2 = 5
Add 2:
7x/3 = 7
Multiply by 3:
7x = 21
Divide by 7:
x = 3
Substitute x in for one of the original equations:
y = 2(3) - 2
y = 6 - 2
y = 4
The solution set is (3, 4).
Answer:
8.1
Step-by-step explanation:
1) Find the measurement of the angle of the arc:
let x = the missing angle
360 = 73 + 65 + 150 + x
x = 72
2) Find the circumference
r = 6.48
C = 2(6.48)(3.14)
C = 40.6944
3) Multiply the circumference by the angle measurement divided by the the angle measurement of the circle:
40.6944 * (72/360)
= 40.6944 * (1/5)
=8.13888
4) Round to the nearest tenth
8.1