495 Answered Questions for the topic Precalculus Homework

Precalculus Homework Precalculus Pre Calculus

04/10/16

how many of these choices is right?
The angle measure,θ, in radians is ...-found by multiplying two rays of length r meters by a distance of s meters.-the openness of two rays, r meters long compared to the circumference in... more
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03/28/16

How can i find b?
A 43 mg of a vaccine is given to a patient to prevent measles. The vaccine leaves the body at a rate of5.2% per hour. b-The number of milligrams of vaccine in the body after h days is how many... more
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Precalculus Homework

03/20/16

Need help solving this
Given the numbers in the linked image, how do I find the following; A) The value of X to the nearest foot? B) The distance from A to C to the nearest foot? http://i.imgur.com/vhOCpbN.jpg   I was... more
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Precalculus Homework

03/19/16

Positive/negative angle
Assume the following angle is in standard position. Fnd a positive and negative whose absolute value is less then 360 degrees and is coterminal with the given angle:-485 degrees
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Precalculus Homework

03/08/16

find the time required for an investigation of 1 dollars to grow to 6500 dollars at an interest rate of 7.5 percent per year, compounded quarterly
find the time required for an investigation of 1 dollars to grow to 6500 dollars at an interest rate of 7.5 percent per year, compounded quarterly  
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03/05/16

Quadratic word problem?! PRECALCULUS PLEASE HELP!??
I have tried over and over again and I keep getting the wrong answer!The demand equation for a certain product is given by p=122−0.035x , where p is the unit price (in dollars) of the product and x... more
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03/01/16

Precalc? Determining the area of a rectangle given its perimeter? PLEASE HELP!!?
The length of a rectangular garden is 8 feet longer than its width. If the garden's perimeter is 188 feet, what is the area of the garden in square feet?       I am really stuck on this and I... more
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03/01/16

Precalc question? Determining the dimensions of a rectangle given the area?? PLEASE HELP!!?
I am really stuck on this and I have not used the Pythagorean Theorem in ages. Could you please explain how you solve this as you go? Thank you for the help! I really appreciate it!   The width... more
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Precalculus Homework Precalculus

02/28/16

in details please
John inserts a partially used battery into a portable electric fan. The percent of the battery’s total charge changes at a constant rate of – 2.4 % per minute as the fan is used. When the fan has... more
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02/28/16

Exponential Growth Problem Involving bacteria population??! PLEASE HELP!!! - Precalculus
I am really stuck on this question, particularly questions 3 and 4. Could you please show how you get the answers to those questions and explain? I have been stuck on those for a while and would... more
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02/26/16

The count in a bateria culture was 100 after 15 minutes and 1800 after 30 minutes.? Find the population in 95 minutes? EXPONENTIAL GROWTH PROBLEM!? PLEASE HELP
The count in a bateria culture was 100 after 15 minutes and 1800 after 30 minutes. 1. What was the initial size of the culture? Round your answer to the nearest bacteria. 2. Find the doubling... more
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Precalculus Homework Inverse Functions

02/24/16

Find th inverse function of the equation
  f (x) = (9x+9)/7x
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Precalculus Homework Distance

02/24/16

maximum vertical distance?
Determine the maximum vertical distance, d, between the parabola, y = −2x2 + 4x + 9, and the line, y = 5x + (−3)  
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Precalculus Homework

02/19/16

Minimum and maximum
Use linear programming to find the ordered pairs(x,y) that maximize and minimize the objective equation P=-5y+2x subject to the following constraints x≥0, y≥0, x+3≤15 and 4x+y≤16. List the maximum... more
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Precalculus Homework

02/19/16

minimize/maximize
Use linear programming to find the ordered pairs (x,Y) that maximize and minmize the objective equation P=-2x+3y subject to the foloowing constaints: x ≥l to 0,, y ≥ to 0, x+2y≤4, and x-y≤1. List... more
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Precalculus Homework

02/18/16

Precalculus help?
After rezoning the austin area for the new maple ridge high school, the school board mapped out the newschool district zones. If the straight-line distance from SPHS to RRHS is 2.5mi and from RRHS... more
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Precalculus Homework

02/18/16

Precal Help?
Two teams survey a mountain. Survey team A measures the angle of inclination to the mountain peak to be 15 degrees,and survey team B measures it to be 25 degrees. If the two teams are 4776.4 feet... more
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Precalculus Homework

02/04/16

Express the volume V of the cone as a function of h.
If the height, h, of a right circular cone is 6 times the radius, r of its base, express the volume V of the cone as a function of h.
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Precalculus Homework

02/03/16

If the second leg of his trip took 8 min more time than the first how fast was he driving between A &B?
A salesman drives from A to B a distance of 112mi. He then increases his speed by 13 mi/h to drive the 154 mi from to C. If the second leg of his trip took 8 min more time than the first how fast... more
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Precalculus Homework Mathematics

02/01/16

Finding exact value without calculator?
If tan theta = 7/24 when pi <= theta <= 3pi/2 find the exact values of sin(2theta)
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Precalculus Homework Precalculus Mathematics

02/01/16

Getting the exact value without calculator?
If cos theta = -12/13 when pi/2 <= theta <= pi and sin alpha = -3/5 when pi/2 <= delta <= pi, find tan(theta + delta)   Thanks for your help.  
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Precalculus Homework Mathematics

02/01/16

Find exact value without using a calculator?
If sin theta = -12/13 when 3pi/2 <= theta <= 2pi, find the exact values of cos theta/2   Thank you for your help
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Precalculus Homework

01/31/16

Find all points on the x-axis that are a distance 9
Find all points on the x-axis that are a distance 9 from P(7, -4) Smaller x value (   ,   ) larger x value (   ,   )
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Precalculus Homework

01/31/16

Determine whether a ball hit 4ft above ground at 115ft per sec. At an angle of 25 degrees relative to level ground will clear a 10-foot wall 310 ft away.
please help. Keep getting different type of answers
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Precalculus Homework

01/31/16

I have to find the slope-intercept form of the line with the given properties. x-intercept = 4, y-intercept = 9
this precalc is hard
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