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ankoles [38]
3 years ago
5

In how many ways can 6 students be chosen from 9 students if the order in which the

Mathematics
1 answer:
harkovskaia [24]3 years ago
4 0

Answer:

60480

Step-by-step explanation:

This question has to do with permutations. A permutation is used to find the number of possible outcomes, assuming order matters. In this case, n=9 and r=6. This is written as _{9}P_{6} which equals \frac{9!}{(9-6)!}. Then, plug this into a calculator to get 60480.

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Jamal needs to contribute $4,050 towards his first year of college. If he has 1 year to save and $1,000 in his savings account a
Genrish500 [490]

Answer:

Jamal needs to save $254.17 each month to cover his expenses.

Step-by-step explanation:

We know that there are 12 months in a year, and Jamal already has $1,000 towards college. Jamal still needs to save $3,050 more dollars because: 4,050 - 1,000 = 3,050. Next, we take how much he has yet to pay ($3,050) divided by how many months in 1 year (12), and that gives us 254.17 per month.

4 0
3 years ago
How does the relationship between multiplication and division help you divide rational numbers?
Kisachek [45]
A rational number is one which can be represented using fractions. The opposite of division is multiplication and vice versa. Knowing this information, you can easily go about turning a division of two fractions into the multiplication of two fractions.
Ex.
(1/2) / (3/4) = ?
multiply the denominator of your fraction by the reciprocal of the denominator.
(1/2)*(4/3) / (3/4)*(4/3)
(4/6) / 1 = 4/6
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3 0
4 years ago
Read 2 more answers
64 POINT QUESTION<br><br> √(5-2x) - √(2-x) = 1
Ivanshal [37]

Answer:

x = 2 and x = -2

Step-by-step explanation:

The easiest way is to guess. We know that you can't have a square root of a negative number. This constrains x between negative infinity to 2. Testing 2 and -2, we see that it satisfy the equation.

The more systematic approach is shown below

\sqrt{5-2x}-\sqrt{2-x}=1 \\\sqrt{5-2x}-\sqrt{2-x}+\sqrt{2-x}=1+\sqrt{2-x} \\\sqrt{5-2x} = 1+\sqrt{2-x}

5-2x=(1+\sqrt{2-x})^2\\5-2x=1+2\sqrt{2-x}+2-x\\2-x=2\sqrt{2-x}\\1-0.5x=\sqrt{2-x}\\(1-0.5x)^2=2-x\\1-x+0.25x^2=2-x\\0.25x^2-1=0\\0.25x^2 = 1\\x^2 = 4\\x = +/-2

x= -2, 2

7 0
3 years ago
WHY does every subject i have SO LONG
Llana [10]

Answer:

omg ikr like my history is 29 videos long

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve for s.<br> 5s + 8 = 4<br> 7<br> S = ?
Ierofanga [76]

Answer:

s = 4

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4 0
2 years ago
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