Answer:
75
Step-by-step explanation:
Since x+3 is the factor of the function f(x) .
So, -3 should satisfy f(x),
Thus putting -3 in f(x) we get
3×
-2×(-3)+k = 0
-81+6+k = 0
k = 75.
So , k should be equal to 75.
Answer:
x >2
Step-by-step explanation:
2x-3> 11 - 5x
Add 5x to each side
2x+5x-3> 11 - 5x+5x
7x -3 > 11
Add 3 to each side
7x-3+3 > 11+3
7x >14
Divide by 7
7x/7 > 14/7
x >2
Answer:
x =14.4
Step-by-step explanation:
Since the triangles are similar, we can use ratios to solve
x 9
----- = ------
8 5
Using cross products
5x = 9*8
5x = 72
Divide each side by 5
5x/5 = 72/5
x =14.4