Answer:
90 calories
Step-by-step explanation:
Calories : quantity of food
there are 300 calories in 100 g of a certain food
300 calories : 100 g food
how many calories are there in a 30 g portion of food
Let x = number of calories
x calories : 30 g food
Equate both ratios
300 calories : 100 g food = x calories : 30 g food
300/100 = x/30
300 * 30 = 100 * x
9000 = 100x
x = 9000/100
x = 90
x = number of calories = 90 calories
 
        
             
        
        
        
A line has one dimension, length.
A plane consists of an infinite set of lines.
        
             
        
        
        
Answer:

Step-by-step explanation:
The given trigonometric equation is  .
.
We can either use the Pythagorean identity or the right angle triangle  to solve for  .
.
According to the Pythagorean identity,

Recall that, the cosine function is an even function, therefore 

 .
.
We substitute this value in to the above Pythagorean identity to get;






But we were given that,
 , so we choose the negative value.
, so we choose the negative value.

The correct answer is B
 
        
             
        
        
        
Are you looking for slope?
if u r the slope is -6/3
 
        
             
        
        
        
Step-by-step explanation:
ES UN EJEMPLO DE PROPIEDAD COMMULATIVE.
hola Hermano, cóme TE IIamas 
donde vives?