ASAP! Let us consider a rather routine problem of laying a brick patio. ENGLISH SYSTEM Problem: How many bricks 3.75 in. wide x 8 in. long are required to cover a patio 16 ft. 3 in. wide by 19 ft. 8 in. long? Step 1. First, find the total width and length of the patio in inches. Step 1a. Convert the portion of width and length that is expressed in feet to inches: width: 16 ft. = 16 x ? = ? in. length: 19 ft. = 19 x ? = ? in. Step 1b. Add these values to the portion of the width and length of the patio expressed in inches to find totals: total width: ? in. + 3 in. = ? in. total length: ? in. + 8 in. = ? in. Step 2. Find the area of the patio in square inches by multiplying its total width by its total length: ? in. x ? in. = ? in.² Step 3. Find the area of each brick in square inches by multiplying its width by its length: ? in. x ? in. = ? in.² Step 4. Find the number of bricks needed by dividing the patio area by the brick area (round up to the nearest whole brick): ?/? = ? bricks

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.

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?