Answer:
see explanation
Step-by-step explanation:
(10)
To evaluate f(- 4) substitute x = - 4 into f(x)
f(x) = 7x - 4x + 3 = 3x + 3
f(- 4) = 3(- 4) + 3 = - 12 + 3 = - 9
(11)
To evaluate f(- 2) substitute x = - 2 into f(x)
f(- 2) = 2(- 2)² - 8 = 2(4) - 8 = 8 - 8 = 0
(12)
To evaluate g(- 3) substitute x = - 3 into g(x)
g(- 3) = - 2(- 3)² + 3(- 3) = - 2(9) - 9 = - 18 - 9 = - 27
Yes, there is a type of triangle called a "3 4 5 triangle" with side lengths 3, 4, and 5.
if u download photomath and take a picture of each problem it will give u a solution to each problem along with the steps of how they got that answer
Answer:
Equation:

2900 CDs will be sold after 20 days.
Step-by-step explanation:
See image.
Answer:
138
Step-by-step explanation:
The LCD here is 12. Mult. each fraction within the brackets by 12 results in
6[6 + 8 + 9). Perform the addition shown within the parentheses, and then mult. the resulting sum by 6:
6(23) = 138