Answer:
120
Step-by-step explanation:
From 20, choose 3:
₂₀C₃ = 120
Here we use combinations instead of permutations because the order doesn't matter.
Answer:
So, $83.40 should be paid monthly
Step-by-step explanation:
5000 divided by 5 = 1000
1000 should be paid yearly
1000 divided by 12 = 83.40
12 represents the number of months in a year.
Answer:
x = - 
Step-by-step explanation:
Given
9x² + 30x + 25 = 0 ← left side is a perfect square
(3x + 5)² = 0, thus
3x + 5 = 0 ⇒ 3x = - 5 ⇒ x = -
solution is x = - with multiplicity 2
Answer: An equation
Step-by-step explanation: In math a equal sign put in between two expressions is called an equation. :)
Answer:
2 pounds of strawberries
Step-by-step explanation:
