Hey Guys, I was wondering if you could help What are the constants in this expression: 6x-8+4y+5 out of these choices: 6, 4 6x, -8, 4y, 5 8, 5 6, -8, 4, 5 -8, 5

Given:

The expression is

To find:

The constants in the given expression.

Solution:

Terms can be a number, variable and product of both. these are separated by "+" sign.

Variables terms:  These terms contains at least one variable.

Constant terms:  These terms are free from the variables. it means there are no variable.

We have,

In this expression, the terms are 6x, -8, 4y, 5, variable terms are 6x, 4y and constant terms are -8, 5.

Therefore, the last option is correct, i.e., -8, 5.

each side has a different length.  

step-by-step explanation:

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺