The equation of a line formula is y=mx+b.
y = 1/4x - 2
m= 1/4
b= -2
Speed = Distance ÷ Time
Time = Distance ÷ Speed
Distance = Speed × Time
Speed = 7/45
Speed = 0.16mph
5/0.16=31.25 more minutes
Answer:
only the third one
Step-by-step explanation:
Answer:
Option A.
Step-by-step explanation:
It is given that, sales (in hundreds) for several months can be modeled by the function:
We need to find the month in which 400 toys were sold.
Substitute S(m)=4 in the given function.
Now,
or
or
or
Approx the value to the next whole number.
or
It means, 400 toys were sold on 7th and 10th month.
Therefore, the correct option is A.
Answer:

Step-by-step explanation:
The equation of a periodic function is in the form:
y = Asin(Bx + C) + D
Where A = amplitude, B = 2π / period, D = vertical shift, phase shift = -C / B.
Given that:
amplitude: 4, period 4 phase shift = vertical shift = -2
Hence:
A = amplitude = 4, B = 2π / period = 2π / 4 = π / 2, D = vertical shift = -2.
Phase shift = -C / B
C = -phase shift * B = - * -2 * π / 2 = π.
Therefore substituting gives:
