All categories

3 years ago

N+3(n-1) n plus three ( n minus 1

Mathematics

1 answer:

liq [111]3 years ago

3 0

Answer:

3n^2+-3

Step-by-step explanation:

nxn +nx(-1) +3xn+ 3x(-1)

You might be interested in

A college financial adviser is interested in studying the number of students at his college who apply for loans when entering gr

Shalnov [3]

Answer:

0.7429

Step-by-step explanation:

Given that Of the 721 students at the college, 299 of them apply for loans when entering graduate school.

So p = proportion of students applying for loans = $\frac{299}{721} =0.415$

Each student is independent of the other and there are two outcomes

Hence out of 45 students the no of students who apply for loans say X is binomial with n =45 and p = 0.415

the probability that more than 16 of them apply for loans

= $P(X>16)\\= \Sigma_{x=17} ^{45} P(x)\\=\Sigma_{x=17} ^{45}(45Cx (0.415)^x (0.585)^{25-x} )$

=0.7429

4 0

3 years ago

The internet was used by 30% of the population of a state in 2008. If 3200 people were surveyed, how many in the survey were usi

andrew-mc [135]

1. We know that 30% expressed as a decimal is 0.30

Since 30% of people were using the internet, 0.30*3200 is our answer.
3200*0.30= 960.

Therefore 960 people were using the internet out of the 3200 surveyed.

4 0

3 years ago

HELP PLEASE ILL GIVE BRAINLIEST!

yulyashka [42]

It should be 3 because you are going to be using the formation of 3√ 3•3•3

4 0

2 years ago

What are the roots of the following polynomial equation? x^3 + 72= 5x^2 + 18x (write from least to greatest)

kow [346]

Answer:

2:3

Step-by-step explanation:

8 0

2 years ago

Solve the following equation<br> x²-10x+25=0

liq [111]

Answer:

X=5

Step-by-step explanation:

You want to factor the left side of the equation

(X-5)(x-5)=0

Set factors that will equal to 0

X-5=0

X=5 is the answer

3 0

2 years ago