1) x= 2
6x2+10=22
2) x = 2
6x2-4=4x2
Answer:
30(2)-6
Step-by-step explanation:
30 computers in 2 labs minus the 6 broken computers.
10×0.35=3.5
it doesn't equal to a whole number (there can't be 'half' a ball in there lol).
Answer:
The smart-phone hit the ground when t = 7 s
Step-by-step explanation:
The height "h" is defined as:
h=16t^2 + 48t + 448
And, when the smart-phone hits the ground, h = 0 ft . Then,
16t^2 + 48t + 448 = 0
And this is a quadratic equation, and we can solve it using the formula for ax^2 + bx + c = 0, which is
x=
So,
t =
t =
And, we have two responses,
t_1 = and t_2 =
t_1 = - 4 s and t_2 = 7 s
As we know, the time is a quantity that cannot have a negative value, so, we take the result 2.
Answer:
El perímetro es 16, por qué para hallar el perímetro son la suma de sus 3 lados.
el área es la base por altura, que en este caso sería...