Answer and work down below. Let me know if you have questions
The formula for exponential growth is y=a(1+r)

. Where a is the initial value when time is 0 (100 in this case). r is the growth rate, we can see that the growth is 10%. And x is how much time has passed, we want to find out how many trucks after 9 years.
So we would plug the values in to get y=100(1+.1)

. Solving this gives us 235.79, so we would round up to 236, and our answer would be 236 trucks registered in the city in year 9.
Edit: The x and the 9 are exponents, the formatting made them look a bit weird.
Answer:
Step-by-step explanation:
Compare the given y = x - 7 to the general slope-intercept formula
y = mx + b
Here the slope is 1 and the y-intercept, b, is -7.
Answer:
$216
Step-by-step explanation:
Do
= 0.2. Now you do 270 x 0.2, which equals 54. Finnaly you do 270-54, which equals 216. So now you have your answer.
Answer:
b) perpendicular to the plane containing both vectors
Step-by-step explanation:
The cross product is perpendicular to both contributing vectors. Consequently, it is perpendicular to the plane containing them.