Answer:
2nd choice: x=4 and x=-4
Step-by-step explanation:
x^2 - 16 = 0 can be simplified to (x-4)(x+4)=0
x-4 = 0 so x = 4
and x + 4 = 0 so x = -4
Answer:
D. 8/9
Step-by-step explanation:
Calculators Rock!!!
Answer:
Find out the how much does each pair of socks cost when bought individually .
To prove
Let us assume that the original price of one pair of shoes be x.
Than cost for three pair of shoes be 3x.
As given
Maritza is buying a multipack of 3 pairs is socks for $25.98.
She will save $6.39 by buying multipack instead of buying 3 individual pairs of the same socks.
Than the equation becomes
3x - 25.98 = 6.39
3x = 25.98 + 6.39
3x = 32.37

x = $10.79
Therefore each pair of socks cost when bought individually is $10.79 .
Vertical angle are always congruent