3 years ago

3. Identify the following as true or false. For those that are false, explain why they are false.

Mathematics

1 answer:

harkovskaia [24]3 years ago

4 0

Answer:

a:false

b:true

c:true

Step-by-step explanation:

a:the sum of all the probabilities in the distribution must be equal to one.

My apologies if any are wrong.

You might be interested in

What is the slope of the line through (-2, 2) and (-5. - 4)?

shusha [124]

Answer:

Step-by-step explanation:

5 0

3 years ago

What is the GCF of 54 and 32

aev [14]

The answer is 86 is the gcf

3 0

3 years ago

20. What is the reciprocal of 5 3/4?

pogonyaev

Answer:

hi good morning

Step-by-step explanation:

i think it must be 23/4 or 46/8 etc.

hope it helped

4 0

2 years ago

Read 2 more answers

5x+7y=77 5x+3y=53 2x+5y=-1 X+2y=0 3x+6y=6 2x-3y=4

blsea [12.9K]

1.)
$5x+7y=77\\ 5x+3y=53\\ (5x+7y)-(5x+3y)=77-53\\ 5x-5x+7y-3y=24\\ 4y=24\\ y=6\\ 5x+7\cdot 6=77\\ 5x+42=77\\ 5x=77-42\\ 5x=35\\ x=\frac { 35 }{ 5 } \\ x=7$

2.)
$2x+5y=-1\\ x+2y=0\\ \\ 2\cdot (x+2y)=2\cdot 0\\ 2x+4y=0\\ (2x+5y)-(2x+4y)=-1-0\\ 2x-2x+5y-4y=-1\\ y=-1\\ 2x+5\cdot -1=-1\\ 2x-5=-1\\ 2x=-1+5\\ 2x=4\\ x=\frac { 4 }{ 2 } \\ x=2$

3.) $3x+6y=6\\ 2x-3y=4\\ 2\cdot (2x-3y)=2\cdot 4\\ 4x-6y=8\\ \\ (3x+6y)+(4x-6y)=6+8\\ 4x+3x+6y-6y=14\\ 7x=14\\ x=\frac { 14 }{ 7 } \\ x=2\\ \\ 3\cdot 2+6y=6\\ 6+6y=6\\ 6y=0\\ y=0\\$

6 0

3 years ago

Using the diagram, calculate the values of the unknown variables: a,b and c

Mrrafil [7]

Answer:

What diagram?

Step-by-step explanation:

We can't answer your questions without you providing the necessary items bro!

8 0

2 years ago

Read 2 more answers