The conversion between these units is 1 km/hr = 0.62 m/hr
Answer:
(a) What will his age be after 5 years?
"5 + y" years old
(b) What was his age 6 years ago?
"y - 6" years old
(c) If his grandfather’s age is five times his, how old is his grandfather?
"5y" years old
(d) His father is 6 years older than three times his age. How old is his father?
"6 + 3y" years old
Note: Disregard the quotation marks, ""
From a distance of 300 feet, a car approaches you at a speed of 48 feet per second. The distance d (in feet) of the car from you after t seconds can be described by the equation d=|300−48t|. At what moments does the car find itself 60 feet away from you?
The hyperbolic cosine function (cosh) is defined as
cosh (x) = (e^x + e^-x) / 2
The tangent line's slope at any given point on a function is determined by the derivative of that function at that specific point.
d/dx [cosh(x)] = d/dx[(e^x + e^-x) / 2] = (e^x - e^-x) / 2 = sinh(x)
Assuming the slope equals 2, we have
sinh(x) = 2
thus,
x = sinh^-1 (2) = 1.444
Consequently, the curve of y = cosh(x) has a slope of 2 at the coordinate x = 1.44
