It's D, you have to divide 1.54$ by 2.2pounds, then you will get the price for 1 pound. And then multiply the price (0,7$) by 5,7 pounds
Answer:
Es igual a 7.
Step-by-step explanation:
Ok, sabemos que:
Queremos calcular:
Tambien sabemos que 4 = 2*2
Entonces:
y sabemos que 2*2 = 2^2
Entonces:
y ahora podemos usar la relación:
entonces:
Ahora podemos completar cuadrados sumando y restando el termino:
Asi tendremos:
Entonces de momento tenemos que:
Sabemos que el termino que esta dentro del parentesis es igual a 3.
Y tambien podemos usar la propiedad:
en el termino de la derecha.
Asi tendremos:
Answer:
49
Step-by-step explanation:
Solve. Note that the power sign is 2. When a number has a power, you are essentially multiply the same number (the power sign's number) of times over.
In this case, your power sign is 2, so you will multiply 7 twice:
7 x 7 = 49
49 is your answer.
~
Answer:
5 ft.
Step-by-step explanation:
Since 1 foot is 12 inches, and you have to be 60 inches tall, than you would divide 60 by 12. which is 5. So it will be 5ft.
Answer:
21+/-sqrt(253)=x
So one value for x is 21+sqrt(253)
and another is 21-sqrt(253)
Problem:
Given (21,7) and (x,1), find all x such that the distance between these two points is 17.
Step-by-step explanation:
Change in x is x-21
Change in y is 7-1=6
distance^2=(change in x)^2+(change in y)^2
17^2=(x-21)^2+(6)^2
289=(x-21)^2+36
Subtract 36 on both sides:
289-36=(x-21)^2
253=(x-21)^2
Take square root of both sides:
+/-sqrt(253)=x-21
Add 21 on both sides:
21+/-sqrt(253)=x