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Pre Calculus

01/23/19

if f(x) = a^x , show that f(A+B) = f(A) * f(B)

I have no idea how to solve this.

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Pre Calculus

01/15/19

A small radio transmitter broadcasts in a 24 mile radius. If you drive along a straight line from a city 28 miles north of the transmitter to a second city 30 miles east of the transmitter

A small radio transmitter broadcasts in a 24 mile radius. If you drive along a straight line from a city 28 miles north of the transmitter to a second city 30 miles east of the transmitter, during... more

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Pre Calculus

01/14/19

what if you're given something like sec = square root of 3 and tan <0

so m problem here is that i know sec is equal to r/x so to me it seems like r= square root of 3 but then that makes x = 1 but then theres no possible value for y that wouldnt be a fraction.... more

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Pre Calculus Calculus Precalculus Pre Calculus

01/12/19

Find f^-1(4) of f(x) = x^9 + x^3 + x + 1

Find f-1(4) of f(x) = x9 + x3 + x + 1The only way I know how to do this is by using a graphing calculator. I don't know how to solve it by hand though. If anyone knows what I should do, please let... more

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Pre Calculus

01/05/19

If u=<-7,6> and v=<-4,17>, which vector can be added to u+3v to getthe unit vector <1,0> as the resultant vector?

Answer Choices A. W=<18,-57>B. W=<18,-45>C. W=<20,-57>D. W=<20,-45>

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Pre Calculus Precalculus Pre Calculus

12/20/18

A sign on a roadway at the top of a mountain indicates that for the next 4 miles the grade is 10.5

A sign on a roadway at the top of a mountain indicates that for the next 4 miles the grade is 10.5°. Find the change in elevation for a car descending the mountain. show work

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Pre Calculus

12/15/18

Solving Unknowns Of Right Traignles

Bobby Is 6’2 Tall. He Is Standing 200 Meters From a Tower. He Is Using Contractors Clinometer To Measure The Angle Of Elevation To The Top Of The Tower. The Anlge Of Elevation is 30 degrees. How... more

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Pre Calculus Math

12/03/18

If cos theta = -1/2, what is cot theta?

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Pre Calculus

11/23/18

How to find the equation of a polynomial with real coefficients and the roots given?

How do I find the equation of a polynomial with real coefficients having 2 and 5-2I as the roots?

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Pre Calculus

11/20/18

The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 74% of the carbon-14 expected in living matter, when did the tree die?

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Pre Calculus

11/13/18

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Pre Calculus

10/25/18

Use the fact that 14 years after 1982 the population increased by 10 million to find k to three decimal places.

17) The population of a particular country was 23 million in 1982; in 1996, it was 33 million. Theexponential growth function A =23ekt describes the population of this country t years after... more

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Pre Calculus

10/25/18

Which investment yields the greater return over 6 years: 7.5% compounded continuously or 7.6% compounded semiannually?

2) Suppose that you have $4000 to invest. Which investment yields the greater return over 6 years: 7.5% compounded continuously or 7.6% compounded semiannually? A) Both investment plans yield the... more

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Pre Calculus Math Trigonometry

10/08/18

how to use trig function

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 70 degrees occurs at 4 PM and the average temperature for the day is 60 degrees.... more

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Pre Calculus Math Algebra 2 Algerbra

10/02/18

Find the cubic polynomial with zeros 3 and 3+4i ( and 3-4i) and having f(1) = 64

Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the... more

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Pre Calculus

09/30/18

To travel 69 miles, it takes Sue, riding a moped, 5 hours less time than it takes Doreen to travel 48 miles riding a bicycle. Sue travels 17 miles per hour fast

math word problem. Set up an equation and solve the following problem.

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Pre Calculus Calculus Trigonometry Calculus 1

09/29/18

Simplify into a single trig function

simply (1+cot(t))/(1+tan(t)) to a single trig function

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Pre Calculus Word Problem Stocks And Bonds Investment

09/16/18

Word Problem about Stocks and Bonds, Simple Interest

Verna invested part of a $10,000 inheritance in stocks paying 6.5% simple interest annually. She invested the rest in bonds paying 4.25% simple interest annually. If Verna will receive $582.50 in... more

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Pre Calculus

09/13/18

How many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 80% antifreeze?

Need help now please!!!!!

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Pre Calculus Math Calculus 1

09/13/18

Find the points that are symmetric to (1,4)

A. Across the x-axis B. Across the y-axis C. Across the origin

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if f(x) = a^x , show that f(A+B) = f(A) * f(B)

A small radio transmitter broadcasts in a 24 mile radius. If you drive along a straight line from a city 28 miles north of the transmitter to a second city 30 miles east of the transmitter

what if you're given something like sec = square root of 3 and tan <0

Find f^-1(4) of f(x) = x^9 + x^3 + x + 1

If u=<-7,6> and v=<-4,17>, which vector can be added to u+3v to getthe unit vector <1,0> as the resultant vector?

A sign on a roadway at the top of a mountain indicates that for the next 4 miles the grade is 10.5

Solving Unknowns Of Right Traignles

If cos theta = -1/2, what is cot theta?

How to find the equation of a polynomial with real coefficients and the roots given?

The​ half-life of​ carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 74​% of the​ carbon-14 expected in living​ matter, when did the tree​ die?

Each spring, a 12 meter by 12 meter garden has its length increased by 2 meters but its width decreased by 50 centimeters. What will be the maximum attainable area of the garden?

i dont get it pls help me

Finding b in a peculiar quadratic formula

b=6, c=4pie3, A= 30 degree

a=8, c=16, B=60 degree

Find f(x) and g(x) so that the function can be described as y = f(g(x)). y = 8/x^2 + 2

Use the fact that 14 years after 1982 the population increased by 10 million to find k to three decimal places.

Which investment yields the greater return over 6 years: 7.5% compounded continuously or 7.6% compounded semiannually?

how to use trig function

Find the cubic polynomial with zeros 3 and 3+4i ( and 3-4i) and having f(1) = 64

To travel 69 miles, it takes Sue, riding a moped, 5 hours less time than it takes Doreen to travel 48 miles riding a bicycle. Sue travels 17 miles per hour fast

Simplify into a single trig function

Word Problem about Stocks and Bonds, Simple Interest

How many gallons of a 90​% antifreeze solution must be mixed with 100 gallons of 30​% antifreeze to get a mixture that is 80​% ​antifreeze?

Find the points that are symmetric to (1,4)

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The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 74% of the carbon-14 expected in living matter, when did the tree die?

How many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 80% antifreeze?