Answer:
<u>x = √13 - 3</u>
<u>x = -√13 - 3</u>
Step-by-step explanation:
Given :
Solving :
- x² + 6x + 9 - 9 - 4 = 0 [Adding and subtracting 9]
- (x + 3)² - 13 = 0 [Group the square term together]
- (x + 3)² -13 + 13 = 0 + 13 [Add 13 on both sides]
- √(x + 3)² = √13 [Taking square root on both sides]
- x + 3 - 3 = ±√13 - 3 [Subtract 3 from both sides]
- x = ±√13 - 3
Solutions :
- <u>x = √13 - 3</u>
- <u>x = -√13 - 3</u>
Answer:
mean = 8.4
Step-by-step explanation:
Mathematically, we have the mean as np
This is the product of the number of items per batch by the probability that each of the products will germinate
Mathematically, we have this as:
0.7 * 12 = 8.4
Answer:
the last two
Step-by-step explanation:
Answer:
6.6 x 10^9
Step-by-step explanation: