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Pie
3 years ago
5

There are 20 students in the community service club. The club needs 4 officers: a president, a vice president, a secretary, and

a treasurer.
Which expression can you use to find the number of ways to choose the officers from all of the members?
Mathematics
2 answers:
tiny-mole [99]3 years ago
6 0

well they could make a test they have to past for those who want to e officers.

steposvetlana [31]3 years ago
5 0

Answer:20! Over (20-4)!

Step-by-step explanation:

i got it correct

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The product of two consecutive integers is 420 which quadratic equation can be used to find x the lesser number
Fynjy0 [20]

Answer:

Step-by-step explanation:

If the smallest number is 'x', then the other number = x +1

x*(x+1)= 420

Use distributive property

x*x + x*1 = 420

x² + x - 420 =0   ------> this is the required quadratic equation.

5 0
3 years ago
Write down all the prime numbers between 15 and 25
Tju [1.3M]
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3 years ago
Read 2 more answers
A bag contain 5 red marbles,4 green marbles and 1 blue marble. A marble is chosen at random from the bag and not replaced; then
jarptica [38.1K]

Answer:

\frac{2}{15}

Step-by-step explanation:

GIVEN: A bag contain 5 red marbles,4 green marbles and 1 blue marble. A marble is chosen at random from the bag and not replaced, then a second marble is chose.

TO FIND: What is the probability both marbles are green.

SOLUTION:

Total marbles in bag =10

total number of green marbles =4

Probability that first marble will be green P(A)=\frac{\text{total green marbles}}{\text{total marbles}}

                                                                    =\frac{4}{10}=\frac{2}{5}

Probability that second marble will be green P(B)=\frac{\text{total green marble in bag}}{\text{total marble in bag}}

                                                                                    \frac{3}{9}=\frac{1}{3}

As both events are disjoint

probability both marbles are green =P(A)\times P(B)

                                                           =\frac{2}{5}\times\frac{1}{3}=\frac{2}{15}

Hence  the probability both marbles are green is \frac{2}{15}

8 0
3 years ago
In the equation <img src="https://tex.z-dn.net/?f=y%20%3D%20ax%5E%7B2%7D%20%2Bk" id="TexFormula1" title="y = ax^{2} +k" alt="y =
polet [3.4K]

virus link above me

dont download it pls u might get virus

3 0
3 years ago
1.01x10^4 decimal notation
marshall27 [118]

1.01\times10^4=1.01\times10,000=1\underbrace{0100}_{4\to}=10,100

Answer:

1.01 × 10⁴ - scientific notation

10,100 - decimal notation

4 0
3 years ago
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