Answer: About 3.06
Step-by-step explanation:
We can use trigonometry functions to solve for AC. Let the ?, representing AC, be "x" in our mathematical work.
Since we have the hypotenuse and x is adjacent to the angle given, I am going to use cosine.
cos(θ) = 
cos(40) = 
0.766 ≈ 
3.06 ≈ x
x ≈ 3.06
Answer:
The total number of students in Toby's grade is 200.
12 MONTHS ......... 100%
X MONTHS ............33%
X = 12*33/100 = 396/100 = 3,96 MONTHS
Step-by-step explanation:
Since the above sequence is a geometric sequence
For an nth term in a geometric sequence
That's

where
r is the common ratio
a is the first term
n is the number of terms
From the question
a = 4.05
r = 1.35 / 4.05 = 0.33
Substitute the values into the above formula
We have

Hope this helps you