Numerical expressions use numbers and algebraic expressions use variables.
Answer:
3126
Step-by-step explanation: f(1)=6 and f(n)=5f(n-1)-4. This means that next number is 5 times previous number minus 4.
f(2)=5f(1)-4 =5x6-4 = 30-4 = 26
f(3)=5f(2)-4 =5x26-4 = 130-4 = 126
f(4)=5f(3)-4 =5x126-4 = 630-4 = 626
f(5)=5f(4)-4 =5x626-4 = 3130-4 = 3126
Answer:
x = -4 , x = -1
Explanation:
Multiply by x on both sides to get rid of fraction
x(x + 4/x) = x(-5)
x^2 + 4 = -5x
x^2 + 5x + 4 = 0
Factor
(x+4)(x+1) = 0
x = -4 , x = -1
Answer:
The correct option is (4).
Step-by-step explanation:
The complete question is:
Let f(p) be the average number of days a house stays on the market before being sold for price p in $1,000s. Which statement best describes the meaning of f(275)?
- Houses sell on the market for an average of $275,000 and stay on the market an average of 275 days before being sold.
- Houses sell for an average of $275,000.
- f(275) indicates houses stay on the market an average of 275 days before being sold.
- f(275) represents the average number of days houses stay on the market before being sold for $275,000.
Solution:
The function f (p) is defined as the average number of days a house stays on the market before being sold for price <em>p</em> in $1,000s.
The function provided is: f (275)
That is, <em>p</em> = $275,000.
So, the function (275) describes the average number of days a house stays on the market before being sold for price $275,000.
Thus, the correct option is (4).