Answer:
x = ± 2
Step-by-step explanation:
Given
f(x) = x² + 1 and (x, 5 ) is a solution then f(x) = 5
Equating the two gives
x² + 1 = 5 ( subtract 1 from both sides )
x² = 4 ( take the square root of both sides )
x = ± 
= ± 2
Thus (- 2, 5) and (2, 5) are solutions
Answer:
0
Step-by-step explanation:
I learned in sixth grade itself eaSy
Answer:
Start your streak by answering any question. You'll get bonus points from day 2
Step-by-step explanation:
3000; you get an answer of 2613, then round up
Answer:
14:6
21:9
28:12
Step-by-step explanation:
Given the initial ratio of 7:3, you can find equivalent ratios by multiplying the two numbers by the same factor:
7 x 2 = 14
3 x 2 = 6
14:6
7 x 3 = 21
3 x 3 = 9
21:9
7 x 4 = 28
3 x 4 = 12
28:12
