1/7 of 42 is smaller. 47/7= 6 < 18 = 36/2
        
             
        
        
        
Answer: 4/9 of the class are boys and 5/9 of the class are girls. 
Step-by-step explanation:
- There are 9 nine students in total in the class since 4 + 5 = 9.
- Input the amount of boys and girls there are in the class in the numerator  and have 9 as the denominator. 4/9 of the class are boys and 5/9 of the class are girls. 
 
        
                    
             
        
        
        
N+(n+1)+(n+2)+(n+3)+(n+4)+(n+5)=270
We use these terms to represent the first six consecutive integers in the sequence
Now we group like terms:
6n+15=270
Minus 15 from both sides of the equation
6n=255
n=42.5 which is not an integer
Is this a joke question?
Besides that, the 2nd number will be 43.5
        
             
        
        
        
The equation of the sin function is y = 3sin(πx/2) + 1, and the graph of the function is shown in the picture.
<h3>What is sin function?</h3>
It is defined as a function that is sinusoidal in nature, and it has a domain of all real numbers and lies between the [a, a]where is the amplitude of the function.
 
As we know the sin function is represented by:
y = Asin(Bx) + C
Here,
A = The amplitude  =  3
C = The vertical shift  = 1
B - The period in terms of π
B = 2π/amplitude
B = 2π/4
B = π/2
The becomes:  

Thus, the equation of the sin function is y = 3sin(πx/2) + 1, and the graph of the function is shown in the picture.
Learn more about the sin function here:
brainly.com/question/14397255
#SPJ1
 
        
             
        
        
        
Answer:
The first one is -2x^2 - 21x + 4, the second one is -15 (I think, not 100% sure), the third one is 4xyz + 3yz + 5x - 4 (also not 100% on this one)