What is the seventh term of the sequence whose nth term is (n + 1)(n − 2)?

Answer:

the right answer is:

• (A)

Step-by-step explanation:

You take the equations that the exercise give you:

1. x + y = 4
2. x - y = a

Now you clear the "y" variable in any equation you want, in this case, I'm gonna use the second equation:

• x - y = a
• -y = a - x

   3. y =  x - a

And now, you'll replace this third equation in the equation you didn't take (the first in this case).

• x + y = 4
• x + (x - a) = 4
• x + x - a = 4

Add the x variables:

• 2x - a = 4
• 2x = 4 + a
• x = (4 + a) / 2

That's the answer of the exercise, but you can represent this in this form:

• x = (4 + a) / 2    ↔  

• x = (4 + a) / 2    ↔  

By this reason, the right answer is .

The quantity of jelly beans bought by Mikayla is 3/8 pounds

What is a number line?

A number line in elementary mathematics is a representation of a graduated straight line that serves as an abstraction for real numbers, represented by the symbol R." It is assumed that every point on a number line corresponds to a real number and that every real number corresponds to a point.

Given that a candy store sells different size bags of jelly beans. The line plot shows the weights of ten bags. Mikayla bought all of the. bags weighing less than 3/8 pound

The number of jelly beans will be calculated as,

1/4 = 2/8 ( 1/4 x 2/2 )

2/8 + 1/8 = 3/8 pounds

To know more about number lines follow

brainly.com/question/29268955

#SPJ2

Answer:

C.) 3/8 pounds

Step-by-step explanation:

1/4 = 2/8 ( 1/4 x 2/2 )

2/8 + 1/8 = 3/8 pounds

hopefully this helps you :)

pls mark brainlest ;)

thank you and stay safe