Mr. Ye is considering two different loan options for $12,000 to fund a home
improvement project. Option 1 is to borrow
this money for 4 years at 4.25% annual
simple interest. Option 2 is to borrow the
money for 5 years at 3.4% annual simple
interest. If no payments are made until the
end of the loan period, which statement is
true regarding this situation?
A The loan amount plus interest owed at
the end of the loan period is greater for
Option 1 than for Option 2.
B The loan amount plus interest owed at
the end of the loan period for Option 1
is equal to that of Option 2.
C The loan amount plus interest owed at
the end of the loan period is less for
Option 1 than for Option 2.
D The length of time money is borrowed
has no affect on the total cost of a loan
since it is the interest rate alone that
determines the total loan cost.

Airplane speeds are measured in three different ways: (1) indicated speed, (2) true speed, and (3) ground speed. the indicated airspeed is the airspeed given by an instrument called an airspeed indicator. a plane’s indicated airspeed is different from its true airspeed because the indicator is affected by temperature changes and different altitudes of air pressure. the true airspeed is the speed of the airplane relative to the wind. ground speed is the speed of the airplane relative to the ground. for example, a plane flying at a true airspeed of 150 knots into a headwind of 25 knots will have a ground speed of 125 knots. the problems below refer to static and dynamic pressure. static pressure is used when a body is in motion or at rest at a constant speed and direction. dynamic pressure is used when a body in motion changes speed or direction or both. a gauge compares these pressures, giving pilots an indicated airspeed. in problem #s 1 and 2, use the following information. the indicated airspeed s (in knots) of an airplane is given by an airspeed indicator that measures the difference p (in inches of mercury) between the static and dynamic pressures. the relationship between s and p can be modeled by s=136.4p√+4.5. 1. find the differential pressure when the indicated airspeed is 157 knots. 2. find the change in the differential pressure of an airplane that was traveling at 218 knots and slowed down to195 knots. in problem #s 3 and 4, use the following information. the true airspeed t (in knots) of an airplane can be modeled by t=(1+a50,000) ⋅ s, where a is the altitude (in feet) and s is the indicated airspeed (in knots). 3. write the equation for true airspeed t in terms of altitude and differential pressure p. 4. a plane is flying with a true airspeed of 280 knots at an altitude of 20,000 feet. estimate the differential pressure. explain why you think your estimate is correct.

Which graph represents the function g(x) = |x + 4| + 2?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?