When you cube or square a number it means to multiply a number by itself a certain amount of times. So when you square a number you multiply that same number together twice and when cubing a number you multiply that same number three times. In your case multiply 1/5 like this: 1/5 x 1/5 x 1/5
Answer:
n₁ = 8
n₂ = - 3
Step-by-step explanation:
√(7n + 25) - n = 1
√(7n + 25) = n + 1
[√(7n + 25)]² = (n + 1)²
7n + 25 = n² + 2n + 1
n² + 2n + 1 - 7n - 25 = 0
n² - 5n - 24 = 0
n² + 3n - 8n - 24 = 0
n(n + 3) - 8(n + 3) = 0
(n - 8)(n + 3) = 0
n - 8 = 0 => n₁ = 8
n + 3 = 0 => n₂ = - 3
Answer:
First, these angles are alternate interior angles.
Step-by-step explanation:
(10x - 5)° and (9x + 1)° are alternate interior angles. Thus, they are congruent to each other.
Thus, to find x, we will set each angle equal to the other.
Solve for x. Collect like terms
1 yen = 0.0075 dollar
450 yen = 0.0075 x 450 = $3.375
Answer:
x > 1/4
Step-by-step explanation:
