Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271
<u>Using the binomial probability relation</u> :
- P(x = x) = nCx * p^x * q^(n-x)
- p = probability of success = 0.4
- q = 1 - p = 0.6
- n = number of trials = 100
P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)
<u>Using a binomial probability calculator</u> :
P(x ≥ 100) = 0.0271
Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271
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When you multiply powers inside the parenthesis, you add them.
3+5=8
(5^8)^5
When powers are outside the parenthesis, you multiply them.
5*8= 50
5^40
Remember: you keep the constant the same. (5)
“D” is the answer.
I hope this helps!
~kaikers
(18 - x - 5)+([18 + 5]/2)
The correct answer is an enlargement of 2
Answer:
x = -6
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
2(3x + 4) - 3(x - 1) = x - 1
<u>Step 2: Solve for </u><em><u>x</u></em>
- [Distributive Property] Distribute: 6x + 8 - 3x + 3 = x - 1
- Combine like terms: 3x + 11 = x - 1
- [Subtraction Property of Equality] Subtract <em>x</em> on both sides: 2x + 11 = -1
- [Subtraction Property of Equality] Subtract 11 on both sides: 2x = -12
- [Division Property of Equality] Divide 2 on both sides: x = -6
