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Get college assignment help at uniessay writers • In your own words, what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, the rational expression 3x/(x^2-16) . What values in the denominator must we be mindful of? Explain why.

A plane that is flying horizontally at an altitude of 2

A plane that is flying horizontally at an altitude of 2 kilometers and a speed of 710 kilometers per hour passes directly over a radar station. How fast is the distance between the plane and the radar station increasing when the distance between the two is 12 kilometers?

Im confused with how we do part b of this question.

Im confused with how we do part b of this question.

At noon, ship A passes the point P that is 7

At noon, ship A passes the point P that is 7 km west of a harbour, heading due north at 8 km/h. At 11 a.m., ship B had left the harbour, sailing due north at 5 km/h. Give an expression for dA, the distance between ship A and the point P, in terms of t, the number of hours after noon.

find the recurrence relation and associated generating functionfor the number of

find the recurrence relation and associated generating functionfor the number of n-digit ternary sequence that havethe pattern 012 occuring for the first time at the end of the sequence

The manager of an 240-unit apartment complex is trying to decide

The manager of an 240-unit apartment complex is trying to decide what rent to charge. Experiences has shown that at rent of $500, all the units will be full, but three additional units will remain vacant for each $20 increse in rent. Find the function for revenue.

A carpenter is building a rectangular room with a mixed perimeter

A carpenter is building a rectangular room with a mixed perimeter of 132 ft. What dimensions would yield the maximum area? What is the maximum area?

A stone dropped into a still pond sends out a circular

A stone dropped into a still pond sends out a circular ripple whose radius increases at a constant rate of 2.3 ft/s. How rapidly is the area enclosed by the ripple increasing at the end of 9.8 seconds?

Temperature on the Fahrenheit scale is a linear function of temperature

Temperature on the Fahrenheit scale is a linear function of temperature on the Celcius scale. Ten degrees Celsius equals 50 degrees Fahrenheit, and 25 degrees celcius wquals 77 degrees fahrenheit. Model each situation with a linear function and graph. Is it reasonable to include negative numbers in the range?

Can you please tell me which number comes next in this

Can you please tell me which number comes next in this series: 298, 209, 129, 58, -4 and how to find the answer? Thanks!

Helen’s Health Foods usually sells 400 cans of ProPac Muscle Punch

Get college assignment help at uniessay writers Helen’s Health Foods usually sells 400 cans of ProPac Muscle Punch per week when the price is $5 per can. After experimenting with process for some time, Helen has determined that the weekly demand can be found by using the equation: D=600 – 40p Where d is the number of cans and p is the price per can a.) Will Helen sell more or less Muscle Punch if she raises her price from $5? b.) What happens to her sales every time she raises her price by $1? c.) Graph the equation.

A IRS auditor randomly selects 3 tax returns from 60 returns

A IRS auditor randomly selects 3 tax returns from 60 returns of which 6 contain errors. What is the probability that she selects none of those containing errors?

Find the volume of the solids below whose cross-section perpendicular to

Find the volume of the solids below whose cross-section perpendicular to the x-ais are 1.Squares 2. Isosceles right triangles 3. Rectangles 4. Half-circles

the perimeter of a rectangle is 266 inches. the length exceeds

the perimeter of a rectangle is 266 inches. the length exceeds the width by 55 in

Fewer than 5 arrivals with λ = 5.90. (Round your answer

Fewer than 5 arrivals with λ = 5.90. (Round your answer to 5 decimal places.)

Two poles are set a = 45 feet apart, but the

Two poles are set a = 45 feet apart, but the point of attachment P for the rope is yet to be determined. If the total walk is to be 74 feet, determine the distance from P to the ground.

Lydia rode 243 miles in three days, first day 67 miles

Lydia rode 243 miles in three days, first day 67 miles and second day 92 miles, how many miles per hour did she average on the third day if she rode for 7 hours?

Two poles are set a feet apart, but the point of

Two poles are set a feet apart, but the point of attachment P for the rope is yet to be determined. If the total walk is to be 61 feet, determine the distance from P to the ground. Round your answer to two decimal places.

The minute hand on a watch is 7 mm long and

The minute hand on a watch is 7 mm long and the hour hand is 5 mm long. How fast is the distance between the tips of the hands changing at one o’clock? (Round your answer to one decimal place.)

partial derivative w=ze^(xyz)

partial derivative w=ze^(xyz)

the half life of radium is 1690 years. If 70 grams

the half life of radium is 1690 years. If 70 grams are present now, how much will be present in 230 years

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