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3241004551 [841]
3 years ago
6

Help Fast

Mathematics
2 answers:
swat323 years ago
4 0

The answer on E2020 is A: Rolling a six-sided number cube 24 times and recording if a 4 comes up.

Mnenie [13.5K]3 years ago
3 0

Answer with explanation:

An experiment is said to be binomial, if it has n number of trials,and out of n trials,when each trial is performed Independently, there are only two possible outcomes,one Success and other will be failure.

In option A,  

Number of trials = 24,which is fixed.

Success= getting 4,when a die is rolled.

Failure = Getting ,number other than,4 , that is , 1,2,3,5,6.

So, This is Binomial Experiment.

In Option B,

Number of trials is not fixed.So, This is not Binomial Experiment.

In Option C

Number of trials is not fixed.So, This is not Binomial Experiment.

In Option D

Number of trials = 24

But, there are more than two possible outcomes.So,this is not a Binomial Experiment.

Correct Option : A

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The third term of the sequence is 120. The fifth term is 76.8 The explicit rule for the geometric sequence is an=?(?)n-1
gulaghasi [49]

Answer:

The explicit rule of the geometric sequence

 aₙ   = 187.5 (0.8)ⁿ⁻¹

Step-by-step explanation:

<u><em> Step(i):-</em></u>

Given that the third term of the sequence = 120

        tₙ = a rⁿ⁻¹  

       t₃  = a r³⁻¹ = ar²

        120 = ar² ..(i)

Given that the fifth term of the given geometric sequence = 76.8

        tₙ = a rⁿ⁻¹  

       t₅  = a r⁵⁻¹ = a r⁴

   76.8  = a r⁴...(ii)

<u><em>Step(ii):</em></u>-

 Dividing (ii) and (i)

         \frac{ar^{4} }{ar^{2} } = \frac{76.8}{120}

        r²   = 0.64

       r    =√ 0.64 = 0.8

Substitute r= 0.8 in equation (i)

         120 = ar²

       120 = a(0.8)²

⇒      a = \frac{120}{0.64} =187.5

<u><em>Step(iii):-</em></u>

The explicit rule of the geometric sequence

                 aₙ  = a rⁿ⁻¹

put a= 187.5  and r = 0.8

                aₙ   = 187.5 (0.8)ⁿ⁻¹

 

7 0
2 years ago
-x-(-y)+(-x)-y+5 x equals -3 y equals -6
AveGali [126]
It should be -1 I believe.
8 0
3 years ago
I NEED HELP AGAIN PLS
ikadub [295]

Answer:

70% of 2500 is 1750 so blue is the correct color.

Have a great day please mark brainliest.

8 0
3 years ago
A classroom board is 54 inches wide and 36 inches tall. Eva
Lady bird [3.3K]
<h3>Answer:  180 inches</h3>

Work Shown:

L = 54 = length

W = 36 = width

P = 2(L+W) ... perimeter of the rectangle

P = 2(54+36)

P = 2(90)

P = 180

She needs 180 inches of ribbon.

To convert to feet, divide by 12. So 180 inches = 180/12 = 15 feet.

8 0
2 years ago
10 Which equation matches the graph? Oy= x y -5 y= 2x O y= 7 7 x -10 5 10 y= 3x -5 -10​
kvv77 [185]

Answer:

y=2x

Step-by-step explanation:

slope = rise/run = 2/1 = 2

8 0
2 years ago
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