Answer:
Step-by-step explanation:
5x - y = -21
y = 5x + 21
Substituting into:
x + y = -3
x + 5x + 21 = -3
6x = -24
x = -4
y = 5(-4) + 21
y = 1
Solution: (-4,1)
Answer:
617 ÷ 6
Dividing in order from left to right:
6 into 6 goes once.
6 into 1 doesn't so carry the 1 to the next number
6 into 17 goes twice, remainder 5
So we have: 102 remainder 5.
Vicky is correct.
If you would like to know the value of the coefficient 'k' in the factored form, you can find this using the following steps:
2x^3 + 18x^2 - 18x - 162 = 2 * (x^3 + 9x^2 - 9x - 81) = 2 * (x^2(x + 9) - 9(x + 9)) = 2 * ((x + 9) * (x^2 - 9)) = 2 * (x + 9) * (x - 3) * (x + 3) = 2 * (x + 3) * (x - 3) * (x + 9)
The correct result would be: k = 3.
Answer:
20
Step-by-step explanation:
The midsegment of a trapezoid is calculated as
= 
= 
= 20
Answer:
I). X= 1,0. II) 1.72
Step-by-step explanation:
Using quadratic formula
