4 Which expressions can never result in a negative real

Ali is a Lead Engineer working on a new oil rig drilling project The project is located outskirts of Kuwait and has no cellular phone service Ali has a two way radio that allows him to transmit messages to other Engineers on the ground His device has a range of 8 miles in all directions The other Engineers have similar devices that can pick up Ali s messages when they are in range of his two way radio On a particular day Ali is in the project head office at the center of the project His co worker Mahmoud is doing a survey of the land by driving along a straight road through the project area The road that Mahmoud is on starts 12 miles west and 12 miles south of the project s head office and ends 14 miles north and 8 miles east of the project s head office A Construct a model on a coordinate plane of the scenario described B Approximately how many miles of road will Mahmoud be able to receive Ali s messages C Suppose that Mahmoud drives at an average rate of 14 miles per hour If Mahmoud starts his trip at 9 A M at what time should Ali expect him to first be able to receive his messages

Enter an ordering on the atomic subformulae of the following formula P P V Q Enter an ordering

apter 4 Compression Members 4 9 5 A column for a multistory building is fabricated from ASTM A588 plates as shown in Figure P4 9 5 Compute the nominal axial compressive strength based on flexural buckling do not consider torsional buckling Assume that the components of the cross section are connected in such a way that the section is fully effective my 2 3 2 8 12 1 1

2 7 A 3400 lb car is traveling in third gear overall gear reduction ratio of 2 5 to 1 on a level road at its top speed of 130 mi h The air density is 0 00206 slugs ft The car has a frontal area of 19 8 ft a drag coefficient of 0 28 a wheel radius of 12 6 inches a drive axle slippage of 3 and a drivetrain efficiency of 88 At this vehicle speed what torque is the engine producing and what is the engine speed in revolutions per minute

25 to 69 beats per minute Let x be a random variable that represents the resting heart rate for an adult horse Assume that x has a distribution that is approximately normal USE SALT a The empirical rule indicates that for a symmetric and bell shaped distribution approximately 95 of the data lies within two standard deviations of the mean 95 20 Therefore a 95 range of data values extending from 4 20 to 20 is often used for commonly occurring data values Note that the interval from 20 to 20 is 40 in length This leads to a rule of thumb for estimating the standard deviation from a 95 range of data values 20 Estimating the standard deviation For a symmetric bell shaped distribution standard deviation range high value low value where it is estimated that about 95 of the commonly occurring data values fall into this range Use this rule of thumb to estimate the standard deviation of x distribution in beats per minute 11 beats per minute b What is the probability that the heart rate is less than 29 beats per minute Round your answer to four decimal places 0 0505 c What is the probability that the heart rate is greater than 61 beats per minute Round your answer to four decimal places 0 10156 d What is the probability that the heart rate is between 29 and 61 beats per minute Round your answer to four decimal places e A horse whose resting heart rate is in the upper 10 of the probability distribution of heart rates may have a secondary infection or illness that needs to be treated What is the heart rate corresponding to the upper 10 cutoff point of the probability distribution Round your answer to the nearest whole number

Which of the following is the correct way to declare a pointer O int ptr O int ptr O Pointer ptr O All of the above is correct O none of the above is correct

Question 2 Which of the following give the value stored at the address pointed to by ptr Optr ptr val ptr

Evaluate the function f x x 6x for the given value of x Simplify your answer f x h

Make an appropriate substitution and solve the equation 2 7 2 7 72 0 The solution set is 3

Tawana owns and operates a sole proprietorship and has a 37 percent marginal tax rate She provides her son Jonathon 17 000 a year for college expenses Jonathon works as a pizza delivery person every fall and has a marginal tax rate of 15 percent Required a What could Tawana do to reduce her family tax burden b How much pretax income does it currently take Tawana to generate the 17 000 after taxes given to Jonathon c If Jonathon worked for his mother s sole proprietorship what salary would she have to pay him to generate 17 000 after taxes ignoring any Social Security Medicare or self employment tax issues d How much money would the strategy in part c save Complete this question by entering your answers in the tabs below Required A Required B Answer is not complete Required C Required D How much money would the strategy in part c save