629,999 =630,000. Nearest hundred
Answer:
Number 1 and Number 4
Step-by-step explanation:
By factoring, you can figure out the roots (x = -2 or x = 2)...
1. x^2 - 4 = 0
--> (x + 2)(x - 2) = 0
--> x = -2, x = 2
2. x^2 + 4 = 0
--> factors weirdly, so I won't write it. You'd have to use the quadratic formula.
3. 3x^2 + 12 = 0
--> 3 (x^2 + 4) = 0
--> factors weirdly (same as above)
4. 4x^2 - 16 = 0
--> 4 (x^2 - 4) = 0
--> 4 (x+2) (x-2) = 0
--> x = -2, x = 2
5. 2 (x-2) 2 = 0
--> x = 2
Sure buddy, will do that today
Answer:
50 + 50 = 100 bus the difference is 0
(50 + 3) + (50 - 3) = 100 and the difference is 6
53 and 47 are the numbers
other way
I. x + y = 100
II. x - y = 6
I + II 2x = 106 --> x = 53
53 + y = 100 --> y = 47
