so it's 28000 feet above ground, to start with, then every passing minute "m" is dropping by 2000 feet, let's see,
1 minute.........................28000 - 2000(1)
2 minutes......................28000 - 2000(2)
3 minutes......................28000 - 2000(3)
4 minutes......................28000 - 2000(4)
m minutes.....................28000 - 2000(m)
h = 28000 - 2000m.
The factorial ! just means we multiply by every natural number less that the value so
6! =6×5×4×3×2×1= 720
for permutations we use the formula n!/(n-r)!
so we have 8!/(8-5)!=8!/3!=8×7×6×5×4
for combinations s we have n!/(n-r)!r!
so we have 12!/(12-4)!4!=12!/8!4!=12×11×10×9/4×3×2=11×10×9/2=99×5
Answer:
112
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
8 × (3v - 4)
v = 6
<u>Step 2: Evaluate</u>
- Substitute in <em>v</em>: 8 × (3 · 6 - 4)
- (Parenthesis) Multiply: 8 × (18 - 4)
- (Parenthesis) Subtract: 8 × 14
- Multiply: 112
The inequality is:
x + $488.04 ≥ $500
And the solution is
x ≥ $11.96
<h3>How to write and solve the inequality?</h3>
First, let's define x as the amount that she needs to deposit.
Now, we know that at the moment Evely has $638.54 in her bank account. Then she pays for $638.54, then she writes a check for $159.50, then we need to subtract that:
$638.54 - $159.50 = $488.04
Now she needs to deposit an amount x, such that her balance is at least $500, then we can write the inequality:
x + $488.04 ≥ $500
Solving that for x, we get:
x ≥ $500 - $488.04 = $11.96
She needs to deposit at least $11.96.
If you want to learn more about inequalities:
brainly.com/question/24372553
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