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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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Evaluate the expression. 4–4÷2
n200080 [17]

Answer:

2.

Step-by-step explanation:

7 0
4 years ago
In a group of 60 students, 12 students take Algebra I, 18 students take Algebra II, and 8 students take both subjects. How many
vodomira [7]
Since 8 students take both, that leaves only 4 students who take Algebra I alone.
Likewise since 8 students take both, that leaves 10 who only take Algebra 2
So out of the 60, twenty two are taking either Alg I Alg Ii or both.

That leaves 38 people who are not taking either.
b. 38

You can set this up using a 2 circle venn diagram.  Just be sure to put the 8 who take both in first.

4 0
3 years ago
Read 2 more answers
What is 22% expressed as a fraction in simplest form?
nata0808 [166]
<span>22% when expressed as a fraction is 22/100.
 to write this in the simplest form, we have to keep dividing both numerator and denominator by a common number.
22/100 , both are divisible by 2. therefore when 22/100 is divided by 2
</span>\frac{22/2}{100/2} =  \frac{11}{50}<span>
then we get 11/50. this cannot be divided any further by a common factor to both. therefore simplest form is 11/50</span>
6 0
3 years ago
4. What is the unit price if 5 pounds of fruit cost $8.40?
STALIN [3.7K]
8.40$ divided by 5 = 1.68$ each pound which makes 1.68$ the unit price per pound.

Now to check the answer 1.68$ times 5 gives us a total of 8.40$
3 0
3 years ago
How does 4go into 20
kow [346]

Answer:

It goes into 20 because 4 is a factor of 20 on the multiplication chart

Step-by-step explanation:

4*1=4

4*2=8

4*3=12

4*4=16

4*5=20

4+4+4+4+4

  8+8+4

     16+4

          20

4 0
3 years ago
Read 2 more answers
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