Answer: 3/4
Step-by-step explanation:
Number of students in Jacob's homeroom = 20. 
Number of students who bring their lunch to school = 5
Since the rest eat lunch in the cafeteria, the number of those who eats in the cafeteria will be:
= 20 - 5
= 15
Fraction that eats in the cafeteria will be: = 15/20 = 3/4
 
        
             
        
        
        
Answer: no
Step-by-step explanation: the answer is no
 
        
             
        
        
        
If the measure of each exterior angle is 24, the measure of each interior angle is then 180-24=156
the sum of the interior angles of a polygon is (n-2)*180, n is the number of sides
(n-2)*180=156*n
180n-360=156n
24n=360
n=15
the polygon has 15 sides
        
             
        
        
        
Answer:

Step-by-step explanation:
Given that  is a right angled triangle.
 is a right angled triangle.

and

Kindly refer to the attached image of  in which all the given angles are shown.
 in which all the given angles are shown.
To find:
sin(38°) = ?
a) cos(38°)
b) cos(52°)
c) tan(38°) 
d) tan(52°)
Solution:
Let us use the trigonometric identities in the given  .
.
We have to find the value of sin(38°).
We know that sine trigonometric identity is given as:

 ....... (1)
....... (1)
Now, let us find out the values of trigonometric functions given in options one by one:

 ....... (2)
....... (2)
By (1) and (2):
sin(38°)  cos(38°).
 cos(38°).
 ...... (3)
 ...... (3)
Comparing equations (1) and (3):
we get the both are same.

 
        
             
        
        
        
Answer:
The awnswer is D. 54.3in^3
Step-by-step explanation: