3 years ago

Help please!!!!!!!!!

Mathematics

1 answer:

exis [7]3 years ago

8 0

Answer:

well they are all different.....

You might be interested in

Factor out the common factor in -45 + 81n + 90n^2

IRISSAK [1]

A: I think it’s 9(−5+9n+10n2)

Step-by-step explanation:

6 0

3 years ago

How do you solve f(x) = 3x^4 + x + 2<br> and how do you find how many zeroes the problem has

pentagon [3]

Answer:

no solution

not sure but you can use math

way to solve

6 0

3 years ago

A student answers a multiple-choice examination question that offers four possible answers. Suppose the probability that the stu

Nitella [24]

Answer: 0.9730

Step-by-step explanation:

Let A be the event of the answer being correct and B be the event of the knew the answer.

Given: $P(A)=0.9$

$P(A^c)=0.1$

$P(B|A^{C})=0.25$

If it is given that the answer is correct , then the probability that he guess the answer $P(B|A)= 1$

By Bayes theorem , we have

$P(A|B)=\dfrac{P(B|A)P(A)}{P(B|A)P(A)+P(C|A^c)P(A^c)}$

$=\dfrac{(1)(0.9)}{(1))(0.9)+(0.25)(0.1)}\\\\=0.972972972973\approx0.9730$

Hence, the student correctly answers a question, the probability that the student really knew the correct answer is 0.9730.

7 0

3 years ago

State a reason why a number does not belong with the others. <br> 32 64<br> 81 144

KiRa [710]

Answer : 81 because it is the only one that is not a multiple of 4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

How do I find the area. Please explain

olganol [36]

All you have to do is multiply it then you get the answer

7 0

4 years ago