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lawyer [7]
4 years ago
12

The probability for event A is 0.4, the probability for event B is 0.2, and the probability of events A and B is 0.1.

Mathematics
1 answer:
torisob [31]4 years ago
3 0

Answer:

the answer is -product of P(A) and P(B) is not equal to P(A and B)

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The ratio of isabellas money to shanes money is 3:11. If isabella has $33, how much money do Shane and Isabella have together?
solong [7]
The ratio of Isabella’s money to Shane’s money is 3:11

Isabella has $33.   

We can make a proportion to solve for how much money Shane has.   
A proportion is two ratios that are set equal to each other.  

Let’s call Shane’s money ‘S’   

We get this proportion:   3/11 = 33/x   

If we cross multiply we get:   
(33) * (11) = (3) * (x)   

Simplifying it, we get:
363 = (3) * (x)   

Divide both sides by 3, we get:
x = 121   

However, the question asks how much money they have together. 

Isabella + Shane = Total
33 + 121 = $154   

<span>They have $154 together.</span>
4 0
3 years ago
If f(x) is discontinuous, determine the reason.
inn [45]
The function is 

f(x) = \begin{cases} x^2-4 &\mbox{if } x\ \textless \ 1, \\ &#10;x+4 & \mbox{if } x\ \textgreater \ 1. \end{cases}.

To the left of 1 the function is a quadratic polynomial, to the right, it is a linear polynomial. Polynomial functions are always continuous, so the only candidate point for discontinuity is x=1.

The left limit is calculated with 1 substituted in x^2+4, which gives 5.

The right limit, is computed using the rule for the right part of 1, that is x+4. 

Thus, the right limit is 1+4=5.

So, both left and right limits are equal. Now if f(1) is 5, then the function is continuous at 1.

But the function is not defined for x=1, that is x=1 is not in the domain of the function. Thus, we have a "whole" (a discontinuity) in the graph of the function.

The reason is now clear:

Answer:<span> f(1) is not defined</span>

5 0
4 years ago
Evaluate the following expression: (-5)(6) + (-6) ÷ (-3). Remember to show your work
Vinil7 [7]

Answer:

-28

Step-by-step explanation:

(-5)(6) + (-6) ÷ (-3) =

-30 + (-6) ÷ (-3) =

-30 + 2 =

-28

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

7 0
3 years ago
Read 2 more answers
Given m∠B = 62, m∠C = 54 and line AD bisects ∠BAC, find m∠ADB
insens350 [35]
THE ANSWER IS: 86 degrees

first find the measure of angle a: since all angles of a triangle add up to 180, add the measures of angle b and angle c then subtract it from 180 to get angle a: 62+54=116, 180-116=64

since we know line AD bisects angle a, we can divide 64 degrees by 2 to find angle BAD: which is 32 degrees

then subtract both 62 and 32 from 180 to get 86 degrees for angle ADB

8 0
3 years ago
The graph of y=5/4x+1 is shown below. The coordinate (0,y) is a solution of the equation. Given the x–value of 0, what is the va
Nikitich [7]

the answer would be y =1 ,

substituting x with 0 would make the 5/4 disappear and leave you with 1, making it Y=1


6 0
3 years ago
Read 2 more answers
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