Answer:
8x - 20
Step-by-step explanation:
3(x - 6) + 4 + 5x - 6 
Distribute 3 to (x - 6)
3(x) - 3(6) + 4 + 5x - 6
3x - 18 + 4 + 5x - 6
Simplify:
3x + 5x - 18 + 4 - 6
8x -18 - 2
8x - 20
-Chetan K
Answer:
Letter B
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Given (x + h) is a factor of f(x) then f(- h) = 0
Given
p(x) = x³ - 4x² + ax + 20 , with (x + 1) as a factor then
p(- 1) = (- 1)³ - 4(- 1)² - a + 20 = 0 , that is
- 1 - 4 - a + 20 = 0
15 - a = 0 ( subtract 15 from both sides )
- a = - 15 ( multiply both sides by - 1 )
a = 15 , thus
p(x) = x³ - 4x² + 15x + 20
If p(x) is divided by (x + h) then p(- h) is the remainder, so
p(- 2) = (- 2)³ - 4(- 2)² + 15(- 2) + 20 , that is
- 8 - 16 - 30 + 20 = - 34 → A
Answer:
-5 = -5.4n
Step-by-step explanation:
- 2.4n -3 = -7.8n+2
add 2.4 to both sides
which would give you
-3 = -5.4n + 2
then you would subtract -2 from both sides
and -5 = -5.4n and this is one solution
Answer:
57
Step-by-step explanation:
the sum of those two interior angles is equal to the exterior (116), so y = 15 and the measure of angle A is 57 if you plug it in
