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const2013 [10]
3 years ago
14

The table shows y as a function of x. Suppose a point is added to this table. Which choice gives a point that preserves the func

tion?
A) (−5, 7)
B) (9, −5)
C) (−1, −5)
D) (−8, −6)

Mathematics
1 answer:
Hunter-Best [27]3 years ago
8 0

Answer:

<em>A) (-5,7)</em>

Step-by-step explanation:

<u>Functions and Relations</u>

A set of values A can have a relation with another set B as long as at least one element of A has at least one image in B. Functions are special relations where each element of A (the domain of the function) has one and only one image on B (the range of the function).

By looking at the options, we can see that x=9, x=-8, and x=-1 already have defined values in Y, so if we define another value for any of them the relation will stop being a function. The only possible choice to preserve the function is the option

\boxed{A)\ (-5,7)}

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There are three local factories that produce radios. Each radio produced at factory A is defective withprobability .02, each one
diamong [38]

Answer:

The probability is 0.02667

Step-by-step explanation:

Let's call D1 the event that the first radio is defective and D2 the event that the second radio is defective.

So, if we select both radios any factory, the probability P(D2/D1) that the second radio is defective given that the first one is defective is:

P(D2/D1) = P(D2∩D1)/P(D1)

Taking into account that 0.02 is the probability that a radio produced at factory A is defective, P(D2/D1) for factory A is:

P(D2/D1)_A=\frac{0.02*0.02}{0.02} =0.02

At the same way, if both radios are from factory B, the probability P(D2/D1) that the second radio is defective given that the first one is defective is:

P(D2/D1)_B=\frac{0.01*0.01}{0.01} =0.01

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P(D2/D1)_C=\frac{0.05*0.05}{0.05} =0.05

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P(A)=1/3

P(B)=1/3

P(C)=1/3

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P(D2/D1)=P(A)P(D2/D1)_A+P(B)P(D2/D1)_B+P(C)P(D2/D1)_C

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P(D2/D1) = 0.02667

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MAVERICK [17]
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Convert your percentage into a decimal:
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Divide both of your decimals:
1.45 \div 0.33 = 4.3939
8 0
3 years ago
Pls help I need a good grade on this I’ll brainlest
sp2606 [1]
-10.4


subtract 5.2 on each side because it’s the inverse operation

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