Eliminate p :
2 (m + 2n + 2p) + (-1) (3m - n + 4p) = 2 (4) + (-1) 25
2m + 4n + 4p - 3m + n - 4p = 8 - 25
-m + 5n = -17
(m + 2n + 2p) + 2 (3m + 2n - p) = 4 + 2 (-4)
m + 2n + 2p + 6m + 4n - 2p = 4 - 8
7m + 6n = -4
Eliminate m :
7 (-m + 5n) + (7m + 6n) = 7 (-17) + (-4)
-7m + 35n + 7m + 6n = -119 - 4
41n = -123
Solve for n :
n = -3
Solve for m :
-m + 5 (-3) = -17
-m - 15 = -17
m = 2
Solve for p :
2 + 2 (-3) + 2p = 4
2 - 6 + 2p = 4
2p = 8
p = 4
Wow, you are right. This is for experts only lol
Answer:
15
Step-by-step explanation:
substitute the values that are given into the expression.
c + a = x
12 + 3 = x
15 = x
Answer:
2x - 19
Step-by-step explanation:
Perimeter = sum of sides
First let's simplify each side
We can simplify each side by using distributive property. Distributive property is where you multiply the number on the outside of the parenthesis by the numbers on the inside of the parenthesis.
2(x + 5)
Distribute by multiplying x and 5 by 2
2 * x = 2x and 2 * 5 = 10
2x + 10
1/2(4x + 8)
Distribute by multiplying 4x and 8 by 1/2
1/2 * 4x = 2x and 1/2 * 8 = 4
2x + 4
-3(2x + 11)
Distribute by multiplying 2x and 11 by -3
-3 * 2x = -6x
-3 * -33
-6x - 33
Finally add all the simplified expressions ( remember that they represent the side lengths of the triangle )
2x + 10 + 2x + 4 - 6x - 33
Combine like terms
2x + 2x - 6x = -2x
10 + 4 - 33 = -19
Perimeter: -2x - 19
21 is the answer i think idk try dividing them all or finindng something or look up how to find a standard deviation
