Answer:
-a^2 or -b^2.
Step-by-step explanation:
Step-by-step explanation:
√1600×8²+√4225
40 x 64 + 65
= 2625
Answer:
The speed of sound is 2.23 times of the speed of race car
Step-by-step explanation:
Given that,
The speed of a race car = 
The speed of sound = 
Dividing the speed of sound to the speed of a race car. So,
So, the speed of sound is 2.23 times of the speed of race car.
Answer:
Not a function.
Step-by-step explanation:
It is not a function since it does not pass the vertical line test.