6.4 i think correct me if I’m wrong
Answer:
Nothing new about leading coefficient. Definition says it can't be zero. It can always be made equal to one by dividing through.
Constant term cannot be zero unless a root is zero.
Step-by-step explanation:
x-3/4 = 0 has root 3/4 constant term -3/4
(x-3/4)(x-b) = 0 has roots 3/4 and b, constant term 3b/4 which is zero only if b is zero.
(x-3/4)(x-b)(x-c) = 0 has roots 3/4, b, c, constant term -3bc/4 which is zero only if b or c is zero.
Etc. ...
Ok, so you have the range correct. It is
120<___<150
(It should be less than or equal to, but there's no symbol for that, to my knowledge.)
But the term in the middle shouldn't be .25x
The reason is because that actually quadruples the price in the end, as you seem to have found out. Rather, instead of multiplying x by .25, multiply the numbers in the range by .75.
Here's why:
When you reduce something in price by 25%, you are paying for 75% of the original price. Not 25%. That would be a 75% discount.
So, in all actuality,your answer would be $90
Answer:
The total money in account after 8 months is $72 + $8 x
Step-by-step explanation:
Given as :
Total money available in saving account = $72
The money saves each month in account = $x
So, The money saves in account after 8 months = $x × 8 = $8 x
Let The total money in account after 8 months = $A
Or, A = money available in saving account + money saves in account after 8 months
i.e A = $72 + $8 x
So, The total money in account after 8 months = A =$72 + $8 x
Hence, The total money in account after 8 months is $72 + $8 x Answer
