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Alik [6]
2 years ago
5

Help see if i got this right please

Mathematics
1 answer:
irinina [24]2 years ago
6 0

Answer:

I think you got it

Step-by-step explanation:

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For a fundraiser , Brad sold 2 less than 3 times the number of candy bars calls that Mary did . If they sold 334 total bars, fin
marysya [2.9K]
x-\ Mary\\
3x-2-\ Brad\\\\
x+3x-2=334\\
4x-2=334\ \ |add\ 2\\
4x=336\ \ | divide\ by\ 4\\x=84\\
3x-2=3*84-2=252-2=250\\\\
Brad\ sold\ 250\ bars\ and\ Mary\ sold\ 84\ bars.
8 0
3 years ago
Five Cs Bank issues credit cards to its customers. In the past 3.4% of the out-of-state nonfraudulent credit card transactions w
kolezko [41]

Answer:

0.0838 (8.62%)

Step-by-step explanation:

defining the event G= an out-of-state transaction took place in a gasoline station , then the probability is

P(G) = probability that the transaction is fraudulent * probability that took place in a gasoline station given that is fraudulent + probability that the transaction is not fraudulent * probability that took place in a gasoline station given that is not fraudulent =  0.033 * 0.092 + 0.977 * 0.034 = 0.0362

then we use the theorem of Bayes for conditional probability. Defining also the event F= the transaction is fraudulent  , then

P(F/G)=P(F∩G)/P(G) =  0.033 * 0.092 /0.0362 =  0.0838 (8.62%)

where

P(F∩G)= probability that the transaction is fraudulent and took place in a gasoline station

P(F/G)= probability that the transaction is fraudulent given that it took place in a gasoline station

7 0
3 years ago
Read 2 more answers
Triangle ABC is translated on the coordinate plane below to create triangle A'B'C'. . . . . If parallelogram EFGH is translated
lina2011 [118]

The ordered pair of point H is (1, -7). The correct answer between all the choices given is the third choice. I am hoping that this answer has satisfied your query about and it will be able to help you, and if you’d like, feel free to ask another question.

8 0
3 years ago
1<br> If f(x) = 3x + 2 and g(x)=x+1, which expression is equivalent to (fog)(x)?
swat32

Answer:

(3x+2)^2+1

Step-by-step explanation:

(f°g)(x) =g(f(x)) =g(3x+2)=(3x+2)^2 +1

6 0
3 years ago
Read 2 more answers
Can you help me it’s. 2 part question I can only add one picture at a time
snow_lady [41]

Recall the definition of the composition between two functions:

(f\circ g)(x)=f(g(x))

Similarly, but not always the same:

(g\circ f)(x)=g(f(x))

Use the rules of correspondence of the functions f and g to find the compositions:

\begin{gathered} f(x)=6x-10 \\ g(x)=8-4x \end{gathered}

Then:

\begin{gathered} (f\circ g)(x)=f(g(x)) \\ =6\cdot g(x)-10 \\ =6(8-4x)-10 \\ =6\cdot8-6\cdot4x-10 \\ =48-24x-10 \\ =-24x+38 \\  \\ \therefore(f\circ g)(x)=-24x+38 \end{gathered}

On the other hand:

\begin{gathered} (g\circ f)(x)=g(f(x)) \\ =8-4\cdot f(x) \\ =8-4(6x-10) \\ =8-4\cdot6x-4\cdot-10 \\ =8-24x+40 \\ =-24x+48 \\  \\ \therefore(g\circ f)(x)=-24x+48 \end{gathered}

Therefore, the answers are:

\begin{gathered} (f\circ g)(x)=-24x+38 \\ (g\circ f)(x)=-24x+48 \end{gathered}

8 0
1 year ago
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