479 Answered Questions for the topic Precalculus Homework

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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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
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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
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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!
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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
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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
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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
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Precalculus Homework

01/31/16

simplify the expression
Simplify the expression completely.6(x + h)^2− 7(x + h) − (6x^2− 7x)                     h
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Precalculus Homework

01/31/16

SImplify the expression?
Simplify the expression into a single fraction of the form Numerator/Denominator ,and determine the numerator and the denominator as functions of u. (You do not have to factor the numerator and do... more
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Precalculus Homework Functions Word Problem

01/31/16

Express the total cost of the cylinder as a function of r?
The volume of the cylinder is 3900 cubic feet. The bottom of the cylinder is reinforced steel, costing $35 per square foot, whereas the sides and top cost just $10 per square foot. Express the... more
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Precalculus Homework Area Of Rectangle

01/31/16

Express the area of the sidewalk as a function of x.
A garden is in the shape of a rectangle. A sidewalk of width 5 ft surrounds the garden. One side of the garden has length 20 ft. The other side has length x. Express the area of the sidewalk as a... more
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