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AVprozaik [17]
3 years ago
15

Which values for A and B will create infinitely many solutions for this system of equations

Mathematics
1 answer:
nikdorinn [45]3 years ago
8 0

Answer:

  A = 6, B = -15

Step-by-step explanation:

In order for there to be infinitely many solutions, the equations must be dependent. That is, one of them must be a multiple of the other. Here, the multiplier is apparently -1.

Comparing coefficients on the left, we see that the bottom equation has an x-coefficient that is the opposite of the one in the top equation. So, to make y-coefficients opposite, the top equation should read ...

  4x -6y = 15 . . . . . A = 6

Carrying that through, the bottom equation should read ...

  -4x +6y = -15 . . . . . B = -15

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Shameel has a flight to catch on Monday morning. His father will give him a ride to the airport. If it rains, the traffic will b
vredina [299]

Answer:

The events rain and Shameel missing his flight are not independent events.

Step-by-step explanation:

Independent events are those events that are not affected by the occurrence (or no occurrence) of other events. These events do not affect the probability of another even taking place.

For example, the events of winning a lottery and being late for work are independent.

If events <em>A</em> and <em>B</em> are independent then:

P(A\cap B)=P(A)\times P(B)

And the conditional probability of <em>B</em> given <em>A</em> is:

P(B|A)=P(B)

Denote the events as follows:

<em>X</em> = Shameel misses his flight

<em>Y</em> = it rains on Monday morning.

The information provided are:

P(X|Y)=0.04\\P(X|Y^{c})=0.03\\P(Y)=0.26

The law of total probability states that:

P(B)=P(B|A)P(A)+P(B|A^{c})P(A^{c})

Use this law to compute the probability of <em>X</em> as follows:

P(X)=P(X|Y)P(Y)+P(X|Y^{c})P(Y^{c})\\=(0.04\times 0.26)+(0.03\times (1-0.26))\\=0.0104+0.0222\\=0.0326\\\approx0.033

If the events <em>X</em> and <em>Y</em> are independent then,

P(X|Y)=P(X)

But the value of P (X) is 0.033.

That is, P(X|Y)\neq P(X).

Thus, the events rain and Shameel missing his flight are not independent events.

4 0
3 years ago
10) Nicole has a 5 lb bag of carrots and a 2 oz bag
maria [59]

Answer:

5 lbs and 2 ozs

Step-by-step explanation:

16 ounces = 1 lbs.

So just add the 2 ounces to the pounds.

5 0
3 years ago
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Hwo can pick whaat signs do the coordinate have and what value would x have?
bixtya [17]

Answer:12

Step-by-step explanation:

4 0
3 years ago
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Find the geometric mean of 275 and 11 275/x=x/11 x^2= 3025 x=sq rt 3025 now I'm not sure what to do.
Bogdan [553]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
you got it 
<span>except keep going to get </span>
<span>x = ±√3025 </span>
<span>x = ± 55 </span>


<span>check: </span>
<span>275 , 55, 11 </span>
<span>is 55/275 = 11/55 ? YES </span>
<span>is -55/275 = 11/=55 ? YES</span>

6 0
3 years ago
Which of the following is a logarithmic function?
Komok [63]

Answer:

A) y = log_{3}(x) is  logarithmic function.

Step-by-step explanation:

Given : Options.

To find : which of the following is a logarithmic function.

Solution : We have given option

Logarithmic function : The function which have log init.

We can see from given options

y = log_{3}(x) is  logarithmic function.

Therefore, A) y = log_{3}(x) is  logarithmic function.

4 0
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