Answer:
the relation is not one-to-one.
Step-by-step explanation:
it can't because every number is in the 4th quadrant.
Answer:
s = 3
Step-by-step explanation:
First compute the cost of the three apps:
21-12=9
The cost of the three apps is $9 then.
Since s is the price of the apps, we deduce the equation:
3s=9
/3
s = 3
.25 for each egg because $1:12 eggs means 1/12 = .25/3
Answer:
Exercise 1: a) Hay 195 hombres en la citada escuela, b) La participación masculina equivale a 
del total. Exercise 2: María ha gastado 
de la paga suministrada por sus abuelos.
Step-by-step explanation:
(The following problem is written in English and therefore explanation will be in such language)
Exercise 1
a) La cantidad de hombres que estudian en la institución se obtiene al sustraer la cantidad de mujeres de la población total. Es decir:
Hay 195 hombres en la citada escuela.
b) Se determina la fracción de la población masculina con respecto al total del plantel educativo:
Se simplifica la fracción:
La participación masculina equivale a del total.
Exercise 2
Supóngase que 100 equivale al total de paga suministrada a María por sus abuelos, la fracción gastada es la razón entre la suma de lo gastado y el total. Es decir:
María ha gastado de la paga suministrada por sus abuelos.
The student did not make any mistake, the solution is correct. Then the correct option is A.
<h3>What is a factorization?</h3>
It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.
A student perform the following steps to find the solution of the equation x² – 2x – 15 = 0.
The factor of the equation will be
Step 1 : x² – 2x – 15 = (x – 5)(x + 3)
Step 2 : (x – 5) = 0 and (x + 3) = 0
Step 3 : x = 5 and – 3
The student did not make any mistake, the solution is correct.
Then the correct option is A.
More about the factorization link is given below.
brainly.com/question/6810544
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