Mathematics, 21.06.2019 16:30 aly2008

# The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

Answers: 2

Mathematics, 21.06.2019 18:40

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.

Answers: 2

Mathematics, 21.06.2019 20:40

(08.03)robert is using the following data samples to make a claim about the house values in his neighborhood: house value a$250,000 b$275,000 c$300,000 . d$267,000 e$250,000 based on the data, should robert use the mean or the median to make an inference about the house values in his neighborhood? he should use the mean because it is in the center of the data. he should use the median because it is in the center of the data. he should use the median because there is an outlier that affects the mean. he should use the mean because there are no outliers that affect the mean.

Answers: 2

Mathematics, 21.06.2019 23:30

Olive garden is only 10yards and the watermelon plants she wants to grow require 2.5 yards each. how mant watermelons can she grow

Answers: 3

Mathematics, 22.06.2019 02:30

Ken earned $128 from his part-time job this summer. he spent 25% of his money on games. he is going to donate 1/6 of the remaining money to charity. how much money will the charity receive?

Answers: 1

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.0...

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