Mark M.

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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Intermediate Algebra, Quadratic Equations

06/15/17

the length of a rectangle is 4 more than the width. the area is 672 square centimeters. find the length and width of the rectangle

Im not very good with word problems and am having trouble learning how to solve these

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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.