If you meant to say 
, then that statement is true.
This is a disjunction which is an "or" statement. If either p or q is true, then overall is true. So the only time it's false is when both p and q are false together.
<h3>
Answer: True</h3>
Answer:
4 + 4i
Step-by-step explanation:
Add the real part and add the imaginary part.
9 + 7i + (-5 - 3i) = 9 + 7i - 5 - 3i
= 9 - 5 + 7i - 3i
= 4 + 4i
Answer:
C≈31.42cm
Step-by-step explanation:
Solution
C=2πr=2·π·5≈31.41593cm
First, you multiply 98*21 which equals 2058. Then, you multiply 2058 times 65 which equals 133770 and there's your answer.
Answer:
16
Step-by-step explanation:
Subtracting the given expressions, that is
3b² - 8 - (b(b² + b - 7) ) ← simplify parenthesis
= 3b² - 8 - (b³ + b² - 7b) ← distribute parenthesis by - 1
= 3b² - 8 - b³ - b² + 7b ← collect like terms
= - b³ + 2b² + 7b - 8 ← substitute b = - 3
= - (- 3)³ + 2(- 3)² + 7(- 3) - 8
= - (- 27) + 2(9) - 21 - 8
= 27 + 18 - 21 - 8
= 16
