All categories

2 years ago

How many ways can a president, vice-president, and secretary be chosen from a club with 9 members?

1 answer:

5 0

This type of problem is a permutation problem. Permutation is the arrangement of a set with certain order. In the problem, if there are 9 members, and 3 positions are available without repeating, we can write the expression as 9P3 - 3 non repeating positions in a set of 9 elements. By evaluating, we will have 9! / (9-3)! = 504. The answer is 504.

You might be interested in

Courtlynn combines 7/8 cup sour cream with 1/2 cream cheese she then divides the mixture between 2 bowls how much mixture does c

natta225 [31]

7/8 + 4/8= 11/8 so 11/8 ÷2 = 5.5/8 she puts 5 1/2 /8 cups of the mixture in each bowl

4 0

4 years ago

Read 2 more answers

Explain how to multiply 15 3/4 x 8

max2010maxim [7]

Answer:

Step-by-step explanation:

The easiest way is to use the distributive rule. 15¾ = 15+ ¾

15¾*8 = (15+¾)8 = 15*8 + ¾*8 = 120+6 = 126

3 0

3 years ago

Is 1/8 - 10× (3/4-3/8X) + 5/8X equivalent to -1/8 × (59-35X)

zubka84 [21]

Yes, Both are equivalent.

<u>Step-by-step explanation:</u>

Step 1:

To find the equality between the given terms Use the BODMAS (Brackets Orders Division Multiplication Addition Subtraction)

RHS SIDE:

$(1/8)-10*((3/4)-(3/8*X)+(5/8*X)$

Equation after 1st modification

$(1/8)-((15/2)-(15/4*X))+(5/8*X)$

Equation after Second modification

$((1/8)-(15/2)+(15/4*X)+(5/8*X))$

Equation after Third modification

LCM 2,4,8 is 8

And taking LCM equation changes to $(1-60+30*X+5*X)/8$

Equation after Final modification

$(-59+35*X)/8$ --------- 1

Step 2:

LHS SIDE:

$-1/8*(59-35X)$

By applying the BODMAS rule in the above equation we will get

$(-59+35*X)/8$ ------------ 2

From equations 1 & 2, the expression $(1/8)-(10*((3/4)-(3/8*X))+(5/8*X)$ is equivalent to $(-1/8)*(59-35*X)$

5 0

3 years ago

Which lines are perpendicular to the line y – 1 = (x+2)? Check all that apply. y + 2 = –3(x – 4) y − 5 = 3(x + 11) y = -3x – y =

Harlamova29_29 [7]

The answers:

a, c, & e

your welcome
<span />

4 0

4 years ago

7th grade math. I don't get please help. Circles and ratios. please help with one's not done and check one's done.

Drupady [299]

Step-by-step explanation:

calculate the area of the shape(s) on the inside and then the area of the sphape on the outside, then subtract the inside's area from the outside shape. im still working on this one, check back in a bit.

7 0

3 years ago