Answer: C. -2 = 2 + 5a - 2 - 6a
-2 - 2 + 2 = 5a - 6a
-2 = - a
2 = a
-7 +6 would equal -1
-7 and +6 are different signs so subtract and use the sign of the larger number <span />
Is it multiple choice<span />
Answer:
9 < x < 25
Step-by-step explanation:
Given that:
- 1st side: 8
- 2nd side: 17
- 3rd side: x
As we know the third side cannot exceed the others added up (8+17)=15
so x is less than 25, due to the laws of triangles.
<=> x < 25 (1)
Moreover, the third side is greater than the difference of the other 2 sides
<=> x > 17-8
<=> x > 9 (2)
From (1) and (2), we have the range of possible values for x is:
9 < x < 25
Answer:
His acceleration is 1.8m/s²
Step-by-step explanation:
acceleration, a = velocity, v / time, t
Velocity = 18m/s, unit is in m/s
time = 10 seconds, unit is in s
Therefore, a = 18m/s/10s = 1.8m/s²
