Answers:
1.) <span>the number 0 (for the real numbers)
</span>
2.) a(b+c)= ab + ac or a(b -c) = ab - ac
3.) equation containing more than one variable
4.) the number 1 (for the real numbers)
5.) <span>the reciprocal of a number; if x is a number other than zero, then 1/x is the multiplicative inverse
</span>
Answer:
x = y = - 1
Step-by-step explanation:
y = - 2x - 3
y = 7x + 6 -----> equation 1.
So,
7x + 6 = - 2x - 3
7x + 2x = - 3 - 6
9x = - 9
Divide 9 on both sides,
9x / 9 = - 9 / 9
x = - 1
Substitute x = - 1 in equation 1,
y = 7x + 6
= 7 ( - 1 ) + 6
= - 7 + 6
= 6 - 7
y = - 1
Therefore,
x = y = - 1
([x]12+ [y]12) = f([x+y}12) = [x+y]4 = [x}4+ [y]4 = f([x]12)+ f([y]12)
Answer:
Yellow: 50
Red: 25
Step-by-step explanation:
5:10
5 times 5 = 25
10 times 5 = 50
