Mark M.

#math #transformationsoffunctions

06/29/17

Take the f(x) = x^2 and then stretch it vertically by 2, shift it upwards by 3 and left by 5 and reflect it over the x and y axis

Please help me

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Algebra 1

06/29/17

A tortoise is moving at a rate of 2 feet per minute, while a hare is running at a rate of 8 feet per minute.

A tortoise is moving at a rate of 2 feet per minute, while a hare is running at a rate of 8 feet per minute. If the tortoise had a head start of 180 feet, how long will it take for the tortoise... more

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Percentage Changes

06/28/17

Percentage decrease

I have a rental property I was renting for $430 p/w. Due to the market I now only get $290 p/w. What is the percentage decrease between the two amounts?

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Story Problems

06/27/17

A pound of cashews sells for $6.00 per pound and a pound of peanuts sells for $3.00 per pound. If you would like to make a 5 pound mixture of peanuts and cashew

A pound of cashews sells for $6.00 per pound and a pound of peanuts sells for $3.00 per pound. If you would like to make a 5 pound mixture of peanuts and cashews at a cost of $5.00 per pound, how... more

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Derivatives

06/27/17

Given that f '(20) = 3, what is the approximate change in the revenue if Odyssey increases its advertising budget from $20,000 to $21,000?

i have tried to understand this but i cannot and my homework is due at 6 pm! Please help

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Algebra 1 Math

06/27/17

Find an equation of each line with the given slope that passes through the given point. Write the equation in the form Ax+By=C

A) m=4; (10,5) B) m= -7/9; (5,2) C) m=-6; (-8,-10) D) m=1/2; (-4,8)

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Business Calculus Relative Extrema

06/26/17

How do I find the derivative of this calculus problem dealing with relative extrema?

I am in relative extrema in my calculus class. I have a problem that states find the relative minimum and relative maximum of the following: G(x) = (x-3)^2 x-4 I... more

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Exponential Equations

06/25/17

Solve an equation

http://prntscr.com/fnyt67

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Precalculus

06/25/17

Given f(x)=2x^2-5 and g(x)=sqaure root(x-5), find f(g(x)) and determine its domain

find f(g(x)) and domain

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R=log(i/i0) Where I=100,000,000i0

06/23/17

R=log(i/i0) where i=100,000,000i0

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Calculus

06/22/17

A farmer plans to enclose a rectangular pasture adjacent to a river (see figure). The pasture must contain 80,000 square meters in order to provide enough grass

A farmer plans to enclose a rectangular pasture adjacent to a river (see figure). The pasture must contain 80,000 square meters in order to provide enough grass for the herd. No fencing is needed... more

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Calculus

06/20/17

Aren't the side derivatives the same for f(x)={x,x<0 & x+2,x<=0? Then isn't it diff at x=0?

calculus, differentiability

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Word Problem

06/20/17

A circle has a circumference of 28Π centimeters (cm). What is the area, in cm,of this circle?

Word problem solve it

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Ratios

06/20/17

Algebra, ratios

Painter A can paint a fence in 30 minutes. If painter A and B can paint the fence together in 18 minutes, how long will it take painter B if he painted the fence alone?

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Precalculus

06/19/17

Find an equation of the line L, where L is perpendicular to y= 3/4x and passes through the point (4,3).

Find an equation of the line L, where L is perpendicular to y=3/4 and passes through the point (4,3).

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Distance, Rate, Time

06/18/17

Distance, Rate, and Time w/ current

Brian decides to start training for swimming in a river. The current in the river is4km/hr. If he swims upstream 2 km and then back downstream to where he started in 3hours, what is his swimming... more

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College Algebra

06/18/17

when a number is decreased by 10% of itself the result is 45. what is the number?

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Precalculus

06/18/17

Is there an even function that has an inverse? Explain

critical thinking

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Exponential Functions

06/18/17

exponential growth model

Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model. A sample of 2100 bacteria selected from this population reached the size of... more

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Word Problem Helpful Tips

06/18/17

Exp. Function

At the beginning of an environmental study, a forest covered an area of 1500km2. Since then, this area has decreased by 1.1% each year. Let t be the number of years since the start of the study.... more

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Precalculus

06/18/17

Assume that the fuctiin f is one to one with domain (-infinity, infinity). F^-1(f(x))(9728).

basic concept

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Algebra Parabolas

06/17/17

write an equation for parabola with vertex at the origin

through (-2,-2√2), opening left

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Independent Cards

06/17/17

Independent card shuffle

If a card is drawn at random from a well-shuffled deck, is getting a five independent of the card color (red or black)?

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Other

06/16/17

Finding z score

A distribution has a standard deviation of σ=12. Find the z=score for the following locations in the distribution. Above the mean by 3 points. Above the mean by 12 points. Below the mean by 24... more

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Precalculus Honors

06/16/17

n2tcost - cos2tsint = 0 on the interval 0≤t≥2Π

Solve algebraically, exact solutions only, sin2tcost - cos2tsint = 0 on the interval 0≤t≥2Π

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Take the f(x) = x^2 and then stretch it vertically by 2, shift it upwards by 3 and left by 5 and reflect it over the x and y axis

A tortoise is moving at a rate of 2 feet per minute, while a hare is running at a rate of 8 feet per minute.