485 Answered Questions for the topic Precalculus Homework

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
Follows • 2
Expert Answers •1
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
Follows • 2
Expert Answers •1

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
Follows • 2
Expert Answers •1

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
Follows • 2
Expert Answers •1
Precalculus Homework Inverse Functions

02/24/16

Find th inverse function of the equation
  f (x) = (9x+9)/7x
Follows • 2
Expert Answers •1
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)  
Follows • 3
Expert Answers •2
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
Follows • 2
Expert Answers •1
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
Follows • 2
Expert Answers •1
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
Follows • 2
Expert Answers •1
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
Follows • 1
Expert Answers •1
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.
Follows • 2
Expert Answers •1
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
Follows • 2
Expert Answers •1
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)
Follows • 3
Expert Answers •2
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.  
Follows • 1
Expert Answers •1
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
Follows • 2
Expert Answers •1
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 (   ,   )
Follows • 4
Expert Answers •3
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
Precalculus Homework

01/31/16

I have to find the slope of the line passing through (-2, 10) and (-5,4)
Have to round to one decimal place
Follows • 2
Expert Answers •1
Precalculus Homework

01/31/16

Find an equation of a line passing through the piont (-1,3) and parallel to the line 2x + 2y = 17
Precalc help
Follows • 2
Expert Answers •1
Precalculus Homework

01/31/16

Find the general form of the line perpendicular to 3x +5y - 8 =0 that passes through the point (-8, 1)
Help please!
Follows • 2
Expert Answers •1
Precalculus Homework

01/31/16

I need to find the radius of a circle given by, x^2 - 10x + y^2 + 8y = 16
rounded to 1 decimal place
Follows • 3
Expert Answers •2
Precalculus Homework

01/31/16

Find the nth-degree polynomial function with real coefficients satisfying n=4, -3,1/4,2i are zeros; f(2)=-144
Find the nth-degree polynomial function with real coefficients satisfying the given conditions. n=4, -3,1/4,2i are zeros; f(2)=-144
Follows • 2
Expert Answers •1
Precalculus Homework

01/31/16

determine the formula for the set of all points
a)Determine a formula for the set of all points, P(x, y), whose distance from (−2,2) is 9. (Your answer should not have a square root in it.) b)This is a circle of radius _____ , with a center at... more
Follows • 1
Expert Answers •1
Precalculus Homework

01/31/16

simplify the expression
Simplify the expression completely.6(x + h)^2− 7(x + h) − (6x^2− 7x)                     h
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.