Answer:
B
Step-by-step explanation:
Solution:
<u>A few definitions...</u>
- Rational number - Any integer, fraction, terminating decimal, or repeating decimal is classified as a rational number
- Irrational number - All the real numbers which are not rational numbers.
<u>Option A - Rational or Irrational?</u>
Since both are known as fractions, they are rational numbers.
<u>Option B - Rational or Irrational?</u>
√2 is classified as an Irrational number because if it is simplified, it does not result in any integer, fraction, terminating decimal, or repeating decimal.
<u>Option C - Rational or Irrational?</u>
- 1/√4 + 7/2
- => 1/2 + 7/2
- => 8/2 = 4
Since this is an integer, this is rational.
<u>Option D - Rational or Irrational?</u>
- √9 + √4
- => √3 x 3 + √2 x 2
- => 3 + 2 = 5
Since this is an integer, this is rational.
In conclusion...
Option B is correct.
Answer:
14
Step-by-step explanation:
To find how many miles the submarine is going per minute, you need to divide the miles (56) by the minutes (4)
56/4 =
14 miles per minute
If the submarine has been descending for 1 minute, and descends at 14 miles per minute, you can conclude that it wend 14 miles below sea level in 1 minute.
Hello,
(3+2i)z+1-2i=2iz-2+i
<==>(3+2i-2i)z=-2+i-1+2i
<==>3z=3(-1+i)
<==>z=-1+i
