1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zarrin [17]
2 years ago
5

A building company employs 3 labourers 12 joiners 8 electrician 4 plumbers. For a job, the company needs one of each type of wor

ker in how may ways can the company choose four workers
Mathematics
1 answer:
Novay_Z [31]2 years ago
7 0

The number of ways that the company can choose four workers is 40920 ways.

<h3>How to calculate the number?</h3>

From the information, the building company employs 3 laborers 12 joiners 8 electrician 4 plumbers. The total number of workers will be:

= 3 + 12 + 8 + 4

= 27 workers

It should be noted that combination will be used to choose the 4 workers. This is illustrated as

Combination formula

ⁿCr = n! / ((n – r)! r!)

n = the number of items.

r = how many items are taken at a time.

where n = 33

r = 4

ⁿCr = n! / ((n – r)! r!)

³³C₄ = 33! / (33 - 4)! 4!

= 33! / 29! 4!

= 33 × 32 × 31 × 30 / 4 × 3 × 2

= 40920 ways

Learn more about combinations on:

brainly.com/question/4658834

#SPJ1

You might be interested in
2x+3y=1470 changed to slope intercept form, write a description which is clear precise and correct of how to graph the line usin
yaroslaw [1]

Answer:

y= 490 - 2x

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
11x + 2y = 68 &amp; 5x + y = 13
matrenka [14]

Answer:

i hope its correct

Step-by-step explanation:

11x + 2y=68 ------------1

5x+y=13 ------------2

y= 13-5x. ------------3

put 3 into 1

11x +2(13-5x) =68

11x +26 -10x =68

x=42

put x =42 into 2

5(42) +y =13

210+y=13

y=13-210

y=197

4 0
3 years ago
On a given dive, a platform diver’s body follows a path that can be modeled by the equation d = −4t^2 + 2t + 6, where d represen
ludmilkaskok [199]

Answer:

t = 1.5 seconds

Step-by-step explanation:

Given that d = −4t^2 + 2t + 6,

where d = distance above the water and

t = seconds.

Let assume that it's a perfect parabola

At the symmetry

t = -b/2a

Where a = -4, b = 2

t = -2/2(-4)

t = 1/4

To determine how long it will take a diver to reach the water’s surface

d = −4t^2 + 2t + 6

At water surface d =0

4t^2 - 2t - 6 = 0

Factorizing the above equation leads to

4t^2 + 4t - 6t - 6 = 0

4t(t + 1) -6(t + 1) = 0

4t - 6 =0

4t = 6

t = 6/4= 3/2 = 1.5 seconds

Since t can't be negative so we ignore the second factor.

3 0
3 years ago
Can someone help me with A, B and C
MariettaO [177]
Find two factors of the last number that add up to the middle number.
a) two factors of 16 that add to 10: 8 and 2. Because 8x2=16 and 8+2=10. then do this:
(x+8)(x+2)

b) (x+4)(x+3)

c) (x+12)(x+1)
3 0
4 years ago
Hello! I would like to have this answered, I need to pass badly and I almost am! Please dont scam and show your work. You may se
BaLLatris [955]

Answer:

Answer is C

Step-by-step explanation:

-3(2x - 4) is less than or equal to 7(3 - x)

-6x + 12 is less than or equal to 21 - 7x

x + 12 is less than or equal to 21

x is less than or equal to 9

5 0
3 years ago
Read 2 more answers
Other questions:
  • Each cracker in the stack has a diameter of 2 inches. The height of the stack is 7.5 inches. What is the volume of the stack?
    5·1 answer
  • -13x+4x=-39+18x what is X??????
    10·2 answers
  • 1.2 out of 3 =10 out of
    14·2 answers
  • What is the integer of 160 feet above sea level
    13·2 answers
  • Solve for all values of x by factoring<br> X^2-4x-45=0
    7·2 answers
  • Which of the following is NOT true about unit rates?
    6·1 answer
  • Determine the name of the segment/line/ray shown below.
    15·1 answer
  • F(x) = 100 - 4x what is the value of f f(-5)
    13·2 answers
  • Dont guess please! ~-~
    7·2 answers
  • Evaluate the following if x = 2, y = -1 and z = 5.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!