-4(3r-2)-2(r+1)
Distribute the -4 and -2
-12r + 8 -2r -2
Combine like terms
-14r + 6
The answer is C
Answer:
Step-by-step explanation:
(5 + (-1))/2 = 4/2 = 2
(8 + (-4))/2= 4/2 = 2
(2, 2) is the Midpoint
The slope of (14,12) and (35,30) is:
m= 6/7
Answer: A = 50.2 degrees
We are given a right angle triangle
Given that:
a = 30
b = 25
Line AB is the longest side which is the hypotenus
Line AC is the opposite sides
Using SOH, CAH, TOA
Answer:
1. set up the equations:
a. total cost: 75x + 95y = 1800
b. total hours: x + y = 20
2. use substitution:
a. x + y = 20 → x = 20 - y
3. plug in value of x:
a. 75(20 - y) + 95y = 1800
4. distribute (75).
1500 - 75y + 95y = 1800
5. combine like terms:
20y = 300
6. divide:
y = 15
7. plug in y to other equation to get x:
x + 15 = 20
8. solve:
x = 5
1st mechanic (x) worked 5 hours
2nd mechanic (y) worked 15 hours
hope this helps :)
