Answer:
Mauricio nació en el año 2000.
Step-by-step explanation:
Supóngase que el cumpleaños se celebra en el año 2020, si 
es la edad actual de Mauricio, entonces la expresión matemática que traduce el enunciado del problema es:
Ahora, se desarrolla y se simplifica la ecuación:
Se despeja :
Mauricio tiene 20 años.
Ahora, el año de nacimiento de Mauricio es la sustracción de la edad de Mauricio del año actual:
Mauricio nació en el año 2000.
Answer:
78
Correct term:60
Step-by-step explanation:
We are given that
The quotient of this expression is given by
We have to find the term in this expression which contains an error.
The quotient of this expression is given by
Using the formula
We can see that in the given expression there is 60 in place of 78.
The error in the expression of quotient is 78.
Correct term is 60.
Step-by-step explanation:
Only 1 number works. 1 will make 819 which is divisible by 9.
Since it is 1 of ten numbers can go in the blank, the answer is 1/10 which is 0.1
The 10 number choices are
0,1,2,3,4,5,6,7,8,9
The only one that works is 1 as I've stated.
Answer:
c.
That's because numbers like 2,31, 50 and so on are integers while 2.4, √66 ND so on are not
R^2+2r-33=0 move constant to other side by adding 33 to both sides
r^2+2r=33 halve the linear coefficient, square it and add to both sides, in this case it is just one
r^2+2r+1=34 now the left side is a perfect square...
(r+1)^2=34 take the square root of both sides...
r+1=34^(1/2) subtract 1 from both sides
r=-1+34^(1/2) and -1-34^(1/2)
