MATHEMATICS
COLLEGE

3n+4

12+n+n+n

3n−12

2n+12+n

WILL MEDAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer: We will start by expanding (or multiplying through) with 3(n+4)

We get:

3n + 12

3n can be expanded to equal 2n+n, so the correct answer will be

2n + 12 + n

Simply add the options together and see what one matches 3n + 12

2n + 12 + n = 3n + 12, which in turn equals 3(n+4)

ANSWER: 2n + 12 + n

We get:

3n + 12

3n can be expanded to equal 2n+n, so the correct answer will be

2n + 12 + n

Simply add the options together and see what one matches 3n + 12

2n + 12 + n = 3n + 12, which in turn equals 3(n+4)

ANSWER: 2n + 12 + n

Answer:

Answer:

12+n+n+n

2n+12+n

Step-by-step explanation:

I took the test on K12 and this was the right answer

HIGH SCHOOL

Find the factor. 5y^2+4y-1=(5y-10)(___)

5y^2+4y-1

= 5y^2 + 5y - y - 1

= 5y(y+1) - 1(y+1)

= (y+1)(5y -1) or

= (5y-1)(y +1)

answer

(5y-1)(y +1)

= 5y^2 + 5y - y - 1

= 5y(y+1) - 1(y+1)

= (y+1)(5y -1) or

= (5y-1)(y +1)

answer

(5y-1)(y +1)

HIGH SCHOOL

A rational expression is undefined when the denominator is zero true or false ?

The answer is true, any time the denominator of a rational expression is 0, it is undefined. A rational expression is something that can be written as x/y, where x and y are both integers and y is not equal to zero. The denominators 0 are expressly prohibited by this notion of a reasonable expression.

What is a rational Expression?Variable-filled fractions are rational expressions. Basis functions are used as the numerator and the denominator in rational expressions.

To put it another way, it has the format p(x)/q(x), where q(x) 0 and p(x) and q(x) are polynomials.

Because rational expressions are really fractions, we can treat them in the same manner as fractions.

To know more about the rational expression:

brainly.com/question/19585906

#SPJ2

True A rational expression is undefined whenever its denominator is zero. By definition, a rational expression is an expression that can be in the form x/y where x and y are integers and y is not equal to zero. This definition of a rational expression strictly excludes denominators of zero.

MIDDLE SCHOOL

What is the solution to the equation fraction 4 over 5 n minus fraction 1 over 5 equals fraction 2 over 5 n?

Answer:

n = 0.5

Step-by-step explanation:

Equation according to given data:

(4/5)n - 1/5 = (2/5)n

Solution:

(4/5)n - 1/5 = (2/5)n

Subtracting (4/5)n on both sides of equation:

= (4/5)n - 1/5 - (4/5)n = (2/5)n - (4/5)n

= - 1/5 = -2/5n

Multiplying -5/2 on both sides of equation:

= -1/5 . -5/2 = -2/5n . -5/2

= 5/10 = n

= n= 1/2 = 0.5

Equation: (4/5)n - 1/5 = (2/5)n

Steps:

1. ((4/5)n - 1/5) - (4/5)n = ((2/5)n) - (4/5)n

2. -1/5 = -2/5n

3. -1/5/-2.5 = -2/5n/-2.5

Solution: n = 2/25 or 0.08

HIGH SCHOOL

A copy machine makes 24 copies per minute. How long does it take to make 114 copies?

A copy machine makes 24 copies per minute is already given. So the question becomes easy because of this part. the only thing that needs to be noticed are the minute details given in the question, otherwise it is an absolutely simple problem.

24 copies can be copied by the copy machine in = 1 minute

Then

114 copies will be copied by the machine in = (1/24) * 114 minutes

= 114/24 minutes

= 4.75 minutes

So the copy machine has the capacity to copy 114 copies in 4.75 minutes.

24 copies can be copied by the copy machine in = 1 minute

Then

114 copies will be copied by the machine in = (1/24) * 114 minutes

= 114/24 minutes

= 4.75 minutes

So the copy machine has the capacity to copy 114 copies in 4.75 minutes.