Answer:
7.8
Step-by-step explanation:
Exercise 3
3z-1/10^5
3z-1/100000
Answer:
r = - 
Step-by-step explanation:
The common ratio r of a geometric sequence is
r = 
= 
= .....
Hence
r = 
= 
= -
Answer:
x^2 - 6x + 147 so the coefficient is 1
Step-by-step explanation:
First, simplify the equation.
1. 2/3x(2x-3) = (2x/3)(2x-3)-(x-7)(x+7)
2. 2x-3(2x/3) = (2x(2x-3)) - (x-7)(x+7)
3. Expand -(x-7)(x+7) = -x^2+49
Combine to get (x^2 - 6x)/3 +49
Simplify to get x^2 - 6x + 147. The coefficient of the quadratic term is one.
C. negative -1/4 < -(-2/3)
Explanation:
the doube negative on 2/3 turns it into a positive. since negative numbers are less than positive numbers, this is true
