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Aleksandr [31]
2 years ago
6

On a six-question multiple-choice test there are five possible answers for each question, of which one is correct (C) and four a

re incorrect (I). If a student guesses randomly and independently, find the probability of being correct on two questions.
Mathematics
1 answer:
brilliants [131]2 years ago
8 0
Since the events are independent and can be reduced to two outcomes, we can solve it using the binomial formula.

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4
Mars2501 [29]

Answer:

The answer would be 98.

Step-by-step explanation:

You divide 700 by 50. Then multiply by 7.

5 0
3 years ago
You have 10 shirts 2 of them are black what is the probability of not choosing a black shirt.
fredd [130]
80% or 4/5
Since there are 2 blacks shirts and 10 in total the probability is of not poking a black shirt is 8/10 which when reduced is 4/5
7 0
3 years ago
Read 2 more answers
What is 0.02% of 40 million pounds?
DanielleElmas [232]
0.02% of 40 million pounds is 8000 (pounds)

5 0
3 years ago
Here are the first five terms of an arithmetic sequence.
Assoli18 [71]

Answer:

The nth term of an AP will be 27 -7n.

Step-by-step explanation:

First five terms of the Arthemetic Sequence is given to us , which is 26 , 19 , 12 , 5

Hence here Common Difference can be found by subtracting two consecutive terms . Here which is 19 - 26 = (-7) .

Here first term is 26 .

And the nth term of an AP is given by ,

★ T_n = a + ( n - 1) d

<u>Subst</u><u>ituting</u><u> respective</u><u> values</u><u> </u><u>,</u>

⇒ T_n = a + ( n - 1 )d

⇒ T_n = 26 + (n - 1)(-7)

⇒ T_n = 26 -7n+1

⇒ T_n = 27 - 7n

<h3><u>Hence </u><u>the</u><u> </u><u>nth</u><u> </u><u>term</u><u> of</u><u> an</u><u> </u><u>AP</u><u> </u><u>can</u><u> </u><u>be</u><u> </u><u>found </u><u>using </u><u>T_</u><u>n</u><u> </u><u>=</u><u> </u><u>2</u><u>7</u><u> </u><u>-</u><u> </u><u>7</u><u>n</u><u>. </u></h3>

8 0
3 years ago
The value of Maggie's car decreased by 25% since last year, when she bought it. If the car is now worth $11,000.00, how much was
fredd [130]

Answer: Do 1.25(19,000.00) and you get 23,750

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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