MATHEMATICS MIDDLE SCHOOL

If a club consists of 11 members, how many different arrangements of president, vice-president, and secretary are possible?

Answers

Answer 1

Answer:

There are 990 different arrangements of president, vice-president, and secretary

The number of arrangements

The given parameters are:

Club members, n = 11

Members to arrange, r = 3

The number of arrangements is calculated using the following permutation equation

Ways = nPr

This gives

Ways = 11P3

Evaluate

Ways = 990

Hence, there are 990 different arrangements of president, vice-president, and secretary

Explanation:

Suppose you have two numbers x and y. We can write an equation such that:

$xy=60.9$

For this equation we have infinitely many solutions. Let's say x equals 2 in this case, so we can isolate y in order to solve this problem:

$xy=60.90 \n \n If \ x=2 \n \n 2y=60.90 \n \n y=(60.90)/(2) \n \n y=30.45$

So we can multiply 2 by 30.45 in order to get 60.90

Learn more:

Identity property of multiplication: brainly.com/question/4677597

#LearnWithBrainly

Your child weighs 16 kg. Your research indicates that 40 mg/kg/day is the recommended dosage. What would the safe dosage be for your child in milligrams per day?

Answers

Answer:

The safe dose for the child is: $640\ (mg)/(day)$

Step-by-step explanation:

We know that the conversion factor is 40 mg/kg/day

The child weighs 16 kg. This means that 40 mg per day corresponds to each kilogram of the child.

So to know how many milligrams per day correspond per day we must multiply 16 kg by the conversion factor

$16\ kg * 40\ ((mg)/(kg))/(day) = 640\ (mg)/(day)$

Answer:

The safest dose would be 640 mg per day.

Hope this helps!

Write a function rule for the table.

Answers

Answer:

B) f(x) = 2x

Hope this helps

-Unknown

What's an example of multiple alleles？

Answers

Multiple alleles refers to an inheritance pattern where a series of 3 or more alternative forms of a gene are possible, however in a normal diploid individual only 2 can exist (one from the father and one from the mother). An excellent example of this is blood type. Multiple alleles gives us the possibility of 6 different blood types.

Hi guys. Can u help me with these 5 problems ?

Answers

1) a = tickets in advance goal = 2000
d =tickets at door
6a +8d = 2000
6(142)+8d =2000
852+8d=2000
8d=2000-852
8d=1148
d=1148/8
d=143.5
round up d=144 need to sell 144 tickets at door

How do I reduce a fraction to its lowest term?

Answers

Step-by-step explanation:

Well, to reduce a fraction to lowest terms, divide the numerator and denominator by their Greatest Common Factor. This is also called simplifying the fraction.

To find the Greatest Common Factor, you must:

1. List the prime factors of each number.

2. Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.

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What is 439 over 937 in simplest form

Madison created two functions. For Function A, the value of y is two less than four times the value of x. The table below represents Function B. -3,-9 -1,5 1,-1 3,3 In comparing the rates of change, which statement about Function A and Function B is true? A. Function A and Function B have the same rate of change. B. Function A has a greater rate of change than Function B has. C. Function A and Function B both have negative rates of change. D. Function A has a negative rate of change and Function B has a positive rate of change.

The price of a t-shirt was reduced from $18.00 to $13.00. Find the percent of the discount.

Question 5 !!!I NEED HELP ASAP!!!!!PLEASE HELP!!!Fernando works between 12 and 25 hours each week. The function t, where t(x) = 9.50 x represents the amount of money Fernando earnsgiven the number of hours, x, he works.Which statement best represents the domain of this function for any given week? A: x>2 9.50B: the set of integersC: 12 < x < 25D:the set of positive numbers