Answer:
x^2 - 6x - 55 = 0
using calculator apply mode 5 3 and write nmbrs
1 , -6 , -55
answers must be 11 and -5
Answer:
The average speed is 24 km/h less than the top speed of the lorry.
Step-by-step explanation:
The top speed of the lorry is the highest speed reached during transit, while its average speed is the mean speed attained
Given:.
Top speed of the lorry = 90 km/h
Average speed of the lorry = 66 km/h
Then,
The difference between the speed reached = top speed - average speed
= 90 - 66
= 24 km/h
Therefore, the average speed is 24 km/h less than the top speed of the lorry.
Answer:
a = 19
Step-by-step explanation:
a=2b-c
a= 2(11) - 3
a = 22 - 3
a = 19
Answer:
7/9 + (-7/9) = 0
Step-by-step explanation:
Definition of additive inverse:
Two numbers are additive inverses if their sum is zero.
For example, 2 and -2 are additive inverses since 2 + (-2) = 0.
Now your problem:
7/9 + (-7/9) =
7/9 and -7/9 are additive inverses.
Therefore, their sum is 0.
7/9 + (-7/9) = 0
