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Precalculus

18h

AP Pre-Cal based question

The half-life of radium is 1690 years. If 90 grams are present now, how much will be present in 340 years

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Precalculus

1d

f(0)=9 Slope of f=8

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Precalculus

3d

Given the function

Given the function f(x) = 0.7e^1.4x- find its inverse- state the domain and range of each function- graph both functions on the same set of axes

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Precalculus

3d

Find the basic solutions in the domain [0,2pi] of the equation tan2 x-3=0

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Precalculus

4d

Tan(u) sin(u) + cos(u)

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Precalculus

4d

How to Solve Sum of Geometric Sequences

[ I am learning about Geometric Sequences in my Algebra 2 class right now. While I found Arithmetic Sequences to be easy, this is more difficult and confusing. If I could get an explanation or... more

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Precalculus

4d

The area of the base of a rectangular desk telephone is 810 square centimeters. The length of the rectangular telephone is 3 centimeters longer than its width.

just need to know how this is all done please and thank you

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Precalculus

6d

Domain & Range Problem

A tank has 14 gallons of water in it when all of a sudden the water begins draining from the tank. Recall that water weighs 8.345 pounds per gallon.a. If 24 pounds of water have left the tank, how... more

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Precalculus

6d

Vertical and Horizontal Intercepts

A tank with some water in it begins to drain. The function v ( t ) = 60 − 1.5 t determines the volume of the water in the tank (in gallons) given a number of minutes t since the water began... more

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Precalculus

6d

Among all pairs of numbers (x,y) such that 8x+2y=34, find the pair for which the sum of squares, x^2+y^2, is minimum.

Among all pairs of numbers (x,y) such that 8x+2y=18, find the pair for which the sum of squares, x^2+y^2, is minimum.

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Precalculus

7d

Distance Problem

Hello,Trying to confirm if 26 meters is the correct answer for the problem below:A fox notices a rabbit that is 30 meters away. The fox's leap is 2 meters whereas the rabbit's leap is 1 meter. If... more

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Precalculus

7d

Given the function

Given the function f(x) = 0.7e^1.4x- find its inverse- state the domain and range of each function- graph both functions on the same set of axes

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Answers •0

Precalculus

7d

Given the function

Given the function f(x) = 0.7e^1.4x- find its inverse- state the domain and range of each function- graph both functions on the same set of axes

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Answers •0

Precalculus

7d

Find sin(2x), cos(2x), and tan(2x) from the given information. csc(x) = 8, tan(x) < 0

found cos2x but cant seem to get the other two right and i dont know what im doing wrong

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Precalculus

8d

Degree: 3 Zeros: -1, 0, 4

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Precalculus

8d

Degree: 3 Zeros: -6, 2, -i

Find remaining zeros. I'm not quite sure how to do this with 'i' involved

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Precalculus

9d

Find the function y=ax^2+bx+c whose graph contains the points (1,4), (-2,-13), and (2,3)

What is the function y=If you can tell me how to do it on a ti83, even better!

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Precalculus

11d

How do I find the other 5 trigonometric functions with just a cosecant value and what quadrant it is in?

I know how to find sin (it is the reciprocal of csc) but with out a cos value I cannot figure out how to find tan, cot, cos and sec

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Precalculus

12d

How do I simplify this completely by using trig identities?

simplify: (secx+cscx)(cosx-sinx)

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Precalculus

12d

How do I simplify this using trig identities?

-sec2(-x)+ sin2(-x)+ cos2(-x)

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Precalculus

12d

If if sin(-x) = -sinx, does sin^2(-x) = -sin^2(x) or sin^2(x)

question on precalc trig identities sin(-x) = -sinx is an odd-even trig identity btw

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Precalculus

12d

What are the dimensions, radius and height?

The volume of a cylinder is 500 cubic centimeters. The top and bottom are made of a material that costs .1 per sq centimeter nd the sides are made of a material that costs .05 per sq centimeter.

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Precalculus

14d

A point T divides a line AB internally in the ratio 5:2. Given that A is (-4,10) amd B is (10,3), find the coordinates of T

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Precalculus

14d

If c and d are constants, what is the slope of a line that is perpendicular to the line cx + dy - b = 3

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Precalculus

15d

I have two Right Triangle Word Problems that I can't figure out

You're going to paint the trim along the ceiling in a fancy house. The trim is 16 feet off the ground. You want the top of your 18 foot ladder to reach 12-13 feet up the wall to make reaching the... more

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precalculus

AP Pre-Cal based question

f(0)=9 Slope of f=8

Given the function

Find the basic solutions in the domain [0,2pi] of the equation tan2 x-3=0

Tan(u) sin(u) + cos(u)

How to Solve Sum of Geometric Sequences

The area of the base of a rectangular desk telephone is 810 square centimeters. The length of the rectangular telephone is 3 centimeters longer than its width.

Domain & Range Problem

Vertical and Horizontal Intercepts

Among all pairs of numbers (x,y) such that 8x+2y=34, find the pair for which the sum of squares, x^2+y^2, is minimum.

Distance Problem

Given the function

Given the function

Find sin(2x), cos(2x), and tan(2x) from the given information. csc(x) = 8, tan(x) < 0

Degree: 3 Zeros: -1, 0, 4

Degree: 3 Zeros: -6, 2, -i

Find the function y=ax^2+bx+c whose graph contains the points (1,4), (-2,-13), and (2,3)

How do I find the other 5 trigonometric functions with just a cosecant value and what quadrant it is in?

How do I simplify this completely by using trig identities?

How do I simplify this using trig identities?

If if sin(-x) = -sinx, does sin^2(-x) = -sin^2(x) or sin^2(x)

What are the dimensions, radius and height?

A point T divides a line AB internally in the ratio 5:2. Given that A is (-4,10) amd B is (10,3), find the coordinates of T

If c and d are constants, what is the slope of a line that is perpendicular to the line cx + dy - b = 3

I have two Right Triangle Word Problems that I can't figure out

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AP Pre-Cal based question

f(0)=9 Slope of f=8

Given the function

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