To find an unknown number take the end number and add it to the number you already have.
2 + 2 = 4
x = 4
Answer:
show ur work first
Step-by-step explanation:
Answer:
The answer is B
Step-by-step explanation:
Answer:
x=5 or x= -4
Step-by-step explanation:
hello :
f(x)=x²-x-20
solve : x²-x-20 =0
(x-5)(x+4)=0
x-5=0 or x+4=0
x=5 or x= -4
1.so what you are going to do it add up all the sides but not just in any order you are going to add up the like terms so 2/3x+1/3x+2/3x+1/3x that adds up to be 2x and the add up 10+5+10+5 which equals 30 so there you go. Your perimeter= 2x+30
2. -2/3 has a repeating decimal