Answer:
4;
25
Step-by-step explanation:
x² + 2(x)(2) + 2²
x² + 4x + 4
x² - 2(x)(5) + 5²
x² - 10x + 25
Answer:
11
Step-by-step explanation:
2(l+w)
40= 2(9+x)
40= 18+2x
Subtract 18 from 40
22=2x
Divide 2x by itself and 22
11=x or x=11
Similarities: same atomic number
Differences: they have a different number of neutrons
The answer is c
(0,8) is the y intercept so the +.. is +8
then pug in 4 to x and find which one equal 0
