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2 years ago

Help math ASAP ASAP math

Mathematics

1 answer:

LenKa [72]2 years ago

8 0

Answer:

y-7=-2/1 (x-1)

Step-by-step explanation:

Hope this helps!

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The graph shows a line and two similar triangles.

docker41 [41]

Answer:

y=1/3x+2

Step-by-step explanation:

7 0

2 years ago

In 2016, the price of a stock decreased by $11. In 2017, the price

Finger [1]

Answer: -11 + (-13)

Step-by-step explanation: This shows that the stock has decreased by 24.

5 0

3 years ago

Read 2 more answers

An industry representative claims that 10 percent of all satellite dish owners subscribe to at least one premium movie channel.

Greeley [361]

Answer: 1) 0.6561 2) 0.0037

Step-by-step explanation:

We use Binomial distribution here , where the probability of getting x success in n trials is given by :-

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

, where p =Probability of getting success in each trial.

As per given , we have

The probability that any satellite dish owners subscribe to at least one premium movie channel. : p=0.10

Sample size : n= 4

Let x denotes the number of dish owners in the sample subscribes to at least one premium movie channel.

1) The probability that none of the dish owners in the sample subscribes to at least one premium movie channel = $P(X=0)=^4C_0(0.10)^0(1-0.10)^{4}$

$=(1)(0.90)^4=0.6561$

∴ The probability that none of the dish owners in the sample subscribes to at least one premium movie channel is 0.6561.

2) The probability that more than two dish owners in the sample subscribe to at least one premium movie channel.

= $P(X>2)=1-P(X\leq2)\\\\=1-[P(X=0)+P(X=1)+P(X=2)]\\\\= 1-[0.6561+^4C_1(0.10)^1(0.90)^{3}+^4C_2(0.10)^2(0.90)^{2}]\\\\=1-[0.6561+(4)(0.0729)+\dfrac{4!}{2!2!}(0.0081)]\\\\=1-[0.6561+0.2916+0.0486]\\\\=1-0.9963=0.0037$

∴ The probability that more than two dish owners in the sample subscribe to at least one premium movie channel is 0.0037.

8 0

3 years ago

1,755 divided 27=

inna [77]

Answer: the answer is 65

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Please help!! <br><br> Evaluate the determinant of the matrix.

kicyunya [14]

i can not give the answer unless you still cannot find it after these steps but I have steps that might help

1. Set the matrix (must be square).

2. Reduce this matrix to row echelon form using elementary row operations so that all the elements below diagonal are zero.

3. Multiply the main diagonal elements of the matrix - determinant is calculated.

5 0

2 years ago