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Natalija [7]
3 years ago
10

Identify the domain of the function shown in the graph

Mathematics
2 answers:
inna [77]3 years ago
6 0
The answer is x \geq 0 because there are no images of x before 0.
mylen [45]3 years ago
4 0

X is all the real numbers

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Suppose you just received a shipment of nine televisions. Three of the televisions are defective. If two televisions are randoml
Temka [501]
<h2>Answer:</h2>

a)

The probability that both televisions work is:  0.42

b)

The probability at least one of the two televisions does not​ work is:

                          0.5833

<h2>Step-by-step explanation:</h2>

There are a total of 9 televisions.

It is given that:

Three of the televisions are defective.

This means that the number of televisions which are non-defective are:

          9-3=6

a)

The probability that both televisions work is calculated by:

=\dfrac{6_C_2}{9_C_2}

( Since 6 televisions are in working conditions and out of these 6 2 are to be selected.

and the total outcome is the selection of 2 televisions from a total of 9 televisions)

Hence, we get:

=\dfrac{\dfrac{6!}{2!\times (6-2)!}}{\dfrac{9!}{2!\times (9-2)!}}\\\\\\=\dfrac{\dfrac{6!}{2!\times 4!}}{\dfrac{9!}{2!\times 7!}}\\\\\\=\dfrac{5}{12}\\\\\\=0.42

b)

The probability at least one of the two televisions does not​ work:

Is equal to the probability that one does not work+probability both do not work.

Probability one does not work is calculated by:

=\dfrac{3_C_1\times 6_C_1}{9_C_2}\\\\\\=\dfrac{\dfrac{3!}{1!\times (3-1)!}\times \dfrac{6!}{1!\times (6-1)!}}{\dfrac{9!}{2!\times (9-2)!}}\\\\\\=\dfrac{3\times 6}{36}\\\\\\=\dfrac{1}{2}\\\\\\=0.5

and the probability both do not work is:

=\dfrac{3_C_2}{9_C_2}\\\\\\=\dfrac{1}{12}\\\\\\=0.0833

Hence, Probability that atleast does not work is:

             0.5+0.0833=0.5833

4 0
3 years ago
How to solve 2x + 3(5-x)-12=4(x+2) step by step
larisa86 [58]
2x+3(5-x)-12=4(x+2)

Distribution property:
2x+15-3x-12=4x+8
Add like terms:
-1x+3=4x+8
Add 1x to both sides:
3=5x+8
Subtract 8 from both sides:
-5=5x
Divide by 5 on both sides to get x by itself:

x= -1
3 0
2 years ago
Read 2 more answers
Answer quick ill do you a good favor too
tangare [24]

Answer:

132=11x12

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Nicole collected 1/4 of a bin of glass bottles to recycle. Maggie collected 5 1/5 times as many bins as Nicole. How many bins of
mojhsa [17]
This is a multiplication problem, so you multiply 4 x 5 1/5. First change 5 1/5 into an improper fraction. Do this by multiplying the denominator and whole, then add the numerator. 5 x 5 + 1= 26. Improper fraction is 26/5. Now multiply 4 x 26/5. 4 x 26= 104. So it is 104/5. Now if you want a mixed number your answer is 20 4/5
3 0
2 years ago
The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?
trasher [3.6K]

Answer:

The correct answer is 60%.

Step-by-step explanation:

We know that the store had a profit of $ 30 for the pair of shoes sold.

Now we must transform that $ 30 into a percentage.

And one of the ways in which we can calculate this percentage is with the following percentage formula:

P= \frac{B}{A} . 100%

P is the percentage we want to calculate.

The number B is the profit we have obtained, 30

And number A is the total of the product, 50

Thus:

P= \frac{30}{50} . 100%\\

P= 0,6 . 100 %

P= 60 %

Given this information, we can say that the percentage markup is 60%.

7 0
3 years ago
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