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castortr0y [4]
3 years ago
8

1 over 4 plus 1 over 2 plus x = - 3 over 4

Mathematics
1 answer:
blagie [28]3 years ago
6 0

Answer:

5/8

Step-by-step explanation:

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Find the indicated probability. round to three decimal places. a test consists of 10
Charra [1.4K]

To answer this problem, we use the binomial distribution formula for probability:

P (x) = [n! / (n-x)! x!] p^x q^(n-x)

Where,

n = the total number of test questions = 10

<span>x = the total number of test questions to pass =   >6</span>

p = probability of success = 0.5

q = probability of failure = 0.5

Given the formula, let us calculate for the probabilities that the student will get at least 6 correct questions by guessing.

P (6) = [10! / (4)! 6!] (0.5)^6 0.5^(4) = 0.205078

P (7) = [10! / (3)! 7!] (0.5)^7 0.5^(3) = 0.117188

P (8) = [10! / (2)! 8!] (0.5)^8 0.5^(2) = 0.043945

P (9) = [10! / (1)! 9!] (0.5)^9 0.5^(1) = 0.009766

P (10) = [10! / (0)! 10!] (0.5)^10 0.5^(0) = 0.000977

Total Probability = 0.376953 = 0.38 = 38%

<span>There is a 38% chance the student will pass.</span>

7 0
3 years ago
$10,000 is compound quarterly at 12% interest for t years. What expression represent the amount of money after t years
exis [7]
X=10,000*1.12y that is the equation
5 0
3 years ago
The assignment is about : Subtract Polynomials What i have to do : Subtract the polynomials, showing all the steps necessary to
lawyer [7]
1. 3x^1 + 8 - (2x^2 + 1).....distribute the negative thru the parenthesis
    3x^1 + 8 - 2x^2 - 1....now combine like terms
    -2x^2 + 3x^1 + 7

2. 5x^2 + 3x - 4 - (x^2 - 6x)...same thing..distribute
    5x^2 + 3x - 4 - x^2 + 6x...combine like terms
    4x^2 + 9x - 4
6 0
3 years ago
The Robinson's guest bathroom is 10.5 feet long and 8 feet wide. Assuming the bathroom is rectangular, what is its area in ft2?
Allisa [31]
The answer is b, or 84ft squared. To find the area of a rectangle, you multiple the length by the width. So you multiply 10.5 by 8, which equals 84.
6 0
3 years ago
Read 2 more answers
Which shows the terms of the series? 4 12 48 192 4 12 36 3 12 48 192 3 12 48
Stells [14]

The value of the term in the series will be equal to 3 + 12 +48 + 192 after calculation.

<h3>What is summation?</h3>

In mathematics, the summation is the addition of a sequence of any kind of numbers, called addends or summands.

Now we have a given term

\sum_{n=1}^{4} 3(4)^{n-1}

By solving the above term;

\sum_{n=1}^{4} 3(4)^{n-1}=3(4)^{1-1}+3(4)^{2-1}+3(4)^{3-1}+3(4)^{4-1}

\sum_{n=1}^{4} 3(4)^{n-1}=3(4)^0+3(4)^1+3(4)^2+3(4)^3

\sum_{n=1}^{4} 3(4)^{n-1}=3 + 12 +48 + 192

Hence the value of the term in the series will be equal to 3 + 12 +48 + 192 after calculation.

To know more about Summation follow

brainly.com/question/2767605

5 0
2 years ago
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