20) Use the distributive property to factor the expression. 10xz − 20yz A) z(10x − 20y) B) 10(xz − 2yz) C) 10z(x − 2y) D) xyz(10
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the function f(x) = 4(x+3) − 5
Lets find the inverse function f^-1(x)
step 1: Replace f(x) with y
y = 4(x+3) − 5
step 2: Replace x with y and y with x
x = 4(y+3) - 5
step 3: Solve for y
x = 4(y+3) - 5
x = 4y +12 -5
x= 4y + 7 (subtract 7 on both sides)
x - 7 = 4y (divide by 4 on both sides)
Given : x = 3
We plug in 3 for x in the inverse function
= -1
the inverse function when x = 3 is -1
Answer: $1,624
Step-by-step explanation:
The amount after x-years is given as :
9 + 50x + 1000
Since x represents number of years , this means that after 6 years , the amount will be :
9( ) + 50(6) + 1000
⇒9(36) + 300 + 1000
⇒324 + 300 + 1000 =
Therefore, the amount after 6 years will be $1,624
Hello!
- Separate the function into parts to determine the domain of each part.
- The domain of a polynomial function is the set of all real numbers.
Domain: ( -∞; ∞ )
- Write the second degree function in standard form.
- Identifies the coefficients a and b of the second degree function.
- Find the x coordinate of the vertex by substituting a = 1 and b = 6 in x = -b / 2a.
- Calculates the value of the function for x = -3.
Range: ( -3; -5 )
Answer: No answer
Good luck! :)