You need his sisters age to solve the problem. if y is the sisters age and x is Johns age, then the equation is
3y-2=x
Answer:
y = -1/6x + 5
Step-by-step explanation:
y = mx + c
Gradient (m) = -1/6
Y-intercept (c) = 5
so
y = -1/6x + 5
Answer: C. 3
Step-by-step explanation:
use the distributive property:
8x^2 - 8 + 3x^2 + 6x
then simplify:
<u>11x^2</u> - <u>8</u> + <u>6x</u>
Answer:
First pilot will gain altitude faster by 7.16 mph than second pilot.
Step-by-step explanation:
In this question we will calculate the y component of the velocity by which the pilots are gaining height. Means we will analyze which pilot will gain the altitude early.
For the first pilot vertical component of the velocity will be
v = 400 × sin30° = 400 × (1/2) = 200 mph
For second pilot vertical component of the speed is
v' = 300 × sin40° = 300 × (0.642) = 192.84 mph
Therefore pilot 1 will gain altitude faster then pilot 2 by
200 - 192.84 = 7.16 mph.
Answered: less or equal to is the correct inequality
