-2 ,-1,0,1 are the domains
I think that the only polynomial that has a solution that are real numbers is:
B) x² + 4x + 3 = 0
(x + 3) (x + 1) → x² + 1x + 3x + 3 → x² + 4x + 3
(x+3) = 0 → x = -3
(x + 1) = 0 → x = -1
Real numbers are number that are whole numbers, rational and irrational numbers, positive and negative numbers, and even zero.
Answer:
C
Step-by-step explanation:
5.3x − 8.14 + 3.6x + 9.8
group the numbers on one side and the x's on the other
5.3x + 3.6x - 8.14 + 9.8
solve
8.9x + 1.66
the answer is C
The expected number of left-handed people in the sample= 45
<h3>Calculation of total number of left-handed</h3>
The number of people selected at random= 450
The percentage of people that are left-handed =10%
Therefore, the number of people that are left-handed,
= 10/100 * 450
= 4500/100
= 45
Learn more about probability here:
brainly.com/question/24756209
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Answer:
n + (2n + 5) = 50
Step-by-step explanation:
n = Nina’s age
2n = twice Nina’s age
5= Ryan is 5 years older than twice Nina’s age
50 = both their ages combined.
So,
n + (2n + 5) = 50
