Answer:
La raíz cuadrada de 721
Step-by-step explanation:
La Segunda Raíz o Raíz Cuadrada del número 721 es 26.8514431642
Esto se comprueba multiplicando 26.8514431642 por si mismo, debe arrojar como resultado 721
o en otro termino 721.9049245737
The Second Root or Square Root of the number 721 is 26.8514431642
This is proven by multiplying 26.8514431642 by itself, it must result in 721
or in another term 721.9049245737
2y^3 m is the width of the rectangle
Step-by-step explanation:
Area of the rectangle = 60y^4 sq. m
Length of the rectangle= 30y m
Area = length x width
60y^4 = 30y x width
Width = 60y^4/ 30y
= 2y^3
The width of the rectangle is 2y^3 meters
Answer:
You have to add a file
Step-by-step explanation:
Answer:
Barbara's speed in clear weather is 
and in the thunderstorm is 
.
Step-by-step explanation:
Let 
be the speed and 
be the time Barbara drives in clear weather, and let 
be the speed and 
be the time she drives in the thunderstorm.
Barbara drives 22 mph lower in the thunderstorm than in the clear weather; therefore,
(1). 
Also,
(2). 
(3). 
,
and
(4). 
From equations (2) and (3) we get:
putting these in equation (4) we get:
and substituting for from equation (1) we get:
This equation can be rewritten as
which has solutions
We take the first solution 
because it gives a positive value for 
.
Thus, Barbara's speed in clear weather is and in the thunderstorm is .
