Answer:
Sabrina necesito 8 horas para llegar a su casa mientras que Diana necesito solo 3.4 horas.
Step-by-step explanation:
debemos resolver la siguientes equaciones:
A + B = 11.4
65A + 50B = 690
donde:
A = tiempo que le toma a Sabrina llegar a su casa
B = tiempo que le toma a Diana llegar a su casa
A = 11.4 - B
65 (11.4 - B) + 50B = 690
741 - 65B + 50B = 690
741 - 690 = 65B - 50B
51 = 15B
B = 51 / 15 = 3.4 horas
A = 11.4 - 3.4 = 8 horas
Scale in terms of cm to m= 1/5
In every meter there are 5 cm
Considering this, if the dimensions are 15cm and 20cm, you would need to multiply them by 5 to convert them to meters
15*5= 75 20* 5=100
Dimensions- 75ft by 100ft
The y-value of the vertex is positive 3, as shown by the +3 on the right hand side of the equation, and the x-value is -1, from the (x+1)^2 (remember, when the number is inside the brackets, flip the sign) The vertex would be (-1, 3)
If you are looking for a rigorous answer (calculus), we must find the mininum point of the equation: f(x) = (x+1)^2 + 3 f
f'(x) = 2(x+1) = 2x + 2
2x + 2 = 0
x = -1
f(1) = (-1 + 1)^2 + 3
f(1) = 0 + 3 = 3
(-1, 3)
Answer:
b. 4x-8
Step-by-step explanation:
1/2 x(8x-16)
= 1/2(8x) - 1/2 (16)
=4x - 8
Hope this helped
I would go with -15 that’s what I came up with
