Answer:
39
Step-by-step explanation:
found the sides length using pythagorean's theorem, and adding them all together
Answer: A (4, -7) B (9, -7)
Step-by-step explanation:
When it’s reflected over the x-axis, the y coordinates become negative but the x coordinates don’t change
x coordinates: 4, 9
y coordinates: 7, 7
Reflected over x-axis: (4, -7), (9, -7)
Answer:
(-5, 2)
Step-by-step explanation:
Answer:
The slope is -2
It means that the battery decreases by 2% each hour since Aiden left his house
Step-by-step explanation:
In the equation y = mx + b, m is the slope.
This equation's slope is -2, since it is the coefficient for t.
In the context of this problem, this means that the battery will decrease by 2% each hour since Aiden has left his house.
Answer:
v = 339,3 in/sec
Step-by-step explanation:
The wheels are moving at a rate of 6 rps (revolutions per second), and the length of the wheel is (L) is
L = 2*π*r where r is a radius of the wheel
L = 2*π*9 (in)
L = 56,55 ( in)
L will be the traveled length by car in each turn of the wheel
Since the wheel has a rate of 6 turns by second, then we need to multiply de numbers of turns by second times, the traveled length in 1 turn, in order to get the speed of the car
Then:
v ( speed of the car ) is:
v = 6 * 56,55 ( in/sec)
v = 339,3 in/sec
