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Olin [163]
3 years ago
6

A and B are independent events. P(A) = 0.40 P(B) = 0.20 What is P(A/B)

Mathematics
1 answer:
Lelu [443]3 years ago
5 0

Answer:

P(A/B)= P(2)

Step-by-step explanation:

You plug in P(A) and P(B) in P(A/B). P(.40/.20) then you solve. 40 divided by 20 is 2, you do not need to do .40 divided by .20 because you will get the same answer as doing 40 divided by 20.

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Substitute for y and rewrite the system of equations as a single equation which can be used to solve for x.
Vlada [557]

Answer:

x = 3  and y = 1

Step-by-step explanation:

Given equations

y=3x-8 and y=4-x

We will substitute y from second equation in the first and get:

4-x = 3x-8   first we will add (+x) to both sides and get

4-x+x = 3x+x-8 =>   4 = 4x-8 now we will add (+8) to the both sides and get

4+8 = 4x-8+8 => 12 = 4x  now we will change the sides of equation and get

4x = 12 => x = 12/4 = 3 => x=3  now we will replace x=3 in the second equation

y= 4-x = 4-3=1 => y=1  

Finally we have  (x , y) = ( 3 , 1)

God with you!!!

7 0
3 years ago
What are the smallest and largest possible numbers in base 3?
adelina 88 [10]

Our number system is in base 10.  The ones place holds digits 0 - 9.  When you reach 10, you must add another place value (the tens place).

Base 3 is digits 0-2 becasue when you reach 3, you need to add another place value.

Therefore, the smallest number is 0 and the largest number is 2.

Answer: smallest = 0, largest = 2

3 0
4 years ago
some of the steps in the derivation of the quadratic formula are shown. step 3: –c b^2/4a=a(x^2 b/ax b^2/4a62) step 4a: –c b^2/4
wel
-converting to a common denominator

The terms -c of the left side was converted to -4ac/4a to have the same denominator of b^2/4a.
3 0
3 years ago
Read 2 more answers
Find the area and circumference of a circle with a radius of 18 meters.​
miskamm [114]

Answer:

Area: about 1017.88

Circumference: about 113.1

Step-by-step explanation:

Area Formula:A= πr^2

Circumference Formula:C=2πr

4 0
4 years ago
An artist can sell 20 compies of a painting for $100 each, but for each additional copy he makes the value of each painting will
ki77a [65]

Answer:

40 copies for $3000

Step-by-step explanation:

First: The Equation

y=(20+x)(100-x)

This shows how for every new painting, the price will go down.

y=2000+80x-x²

Convert it to standard form: ax²+bx+c

You can now choose to graph it or find the vertex form. For the limit of time, I will just use a graph.

The vertex, (40,3000), is your answer, where the x value is the number of paintings and the y value the money made.

4 0
4 years ago
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