To solve this expression, we need to plug r into the equation.
1 + (5)2 - (5)
= 1 + 10 - 5
= 11 - 5
= 6
Hope this helps!
Answer:
x² + 10x - 12
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
x(2x - 2) + 6(2x - 2) ← distribute both parenthesis
= 2x² - 2x + 12x - 12 ← collect like terms
= 2x² + 10x - 12
The function that represents Wayne´s elevation:
y = 30 x - 105
The function that represents Winston´s elevation:
- 100 = 0 m + b
b = -100
-16 = 3m - 100
3 m = 84
m = 84 : 3 = 28
y = 28 x - 100
Surface level: y = 0
Wayne:
0 = 30 x - 105
x = 3.5 minutes
Winston:
0 = 28 x - 100
x = 3.57 minutes
If they both ascend at the same rate, Wayne will be first to the surface.
Isolate x.
24x = 48 - 2y
Divide by 24.
x = 2 - y/12
