12/13/19

To construct one three-digit number and one two-digit number from 1,2,3,4,5 without using any number twice, what’s the probability of getting two even numbers?

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12/13/19

Geometric sequence

The sum of the first 5 terms of a geometric sequence is 93/4 and the first term is 12. What is the common ratio?
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12/13/19

lines and equations
Write the equation of a line that is perpendicular to the given line and that passes through the given point.y = x ; (–4, 2)
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12/12/19

400 reduced by 3 times my age is 241 whats the age?
Two step equations i need help with more problems too.
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12/12/19

For what 6 values of b is the expression factorable?
This is for my class homework and I really don´t understand it. For what 6 values of b is the expression factorable? x^2+bx+12
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12/12/19

Geometry Math Question
One contestant in a catch- and- release fishing contest spends the morning at a location 1.9 miles due north of the starting point, then goes 1.1 miles due east for the rest of the day. A second... more
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12/12/19

precalc question
A ship embarked on a long voyage. At the start of the voyage, there were 500 ants in the cargo hold of the ship. One week into the voyage, there were 800 ants. Suppose the population of ants is an... more
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12/12/19

Quadratic Word Problem
A woman falling from a building is modeled by the equation, h=-16t^2+300. Superman makes a path modeled by the equation, 100t+3h=600. Will he get to her before she hits the ground? If so at what... more
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12/12/19

Precalc question
A ship embarked on a long voyage. At the start of the voyage, there were 500 ants in the cargo hold of the ship. One week into the voyage, there were 800 ants. Suppose the population of ants is an... more
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12/11/19

Solving Polynomials
Simplify each expression. Final answers should be written in standard form.(-4m2n)4·1/6m-10n-4I'm confused on how to work this out step-by-step. The exponents should all be positive, following the... more
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12/11/19

Trig question HELP!!!
A person is standing on a cliff that is 200ft above a body of water. The person looks down at an angle of depression of 35o at a sailboat. Then the person looks at a yacht that is further out at an... more
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12/11/19

The area of a rectangle with length 6 cm and width 7 cm is 42 square centimeters. Using an inverse variation, what is the length of a rectangle with the same area and width 4cm?
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12/10/19

y-2=1/2(x+6) slope intercept form
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12/10/19

Variation Pressure and Volume
The pressure of a gas varies inversely as the volume. If the pressure is 40 psi when the volume is 10 cubic meters, what will the pressure be when the volume is 16 cubic meters?
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12/10/19

A farmer bought a number of pigs for $280. However, 3 of them died before he could sell the rest at a profit of 6 per pig. His total profit was $120. How many pigs did he originally buy?
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12/10/19

In a question it asks for me to find coordinates of a line from a standard equation, how do I do that? A standard equation that can be created.
I am stumped on this question for a long time because I have simply no idea on what to do.
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12/09/19

Solve Using Table of Integrals
∫(xe^x)dx=
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12/09/19

What are all possible zeros and actual zeros of the function f(x)=x3-9x2+27x-28
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12/09/19

Word problem help!
A rectangular box without a top has a square base and a volume of 24 cubic inches. Let x be the length of the sides of the base. Write the surface area of the box as a function of the single... more
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12/09/19

Precalculus word problem
An arch going into an alley is in the shape of a downward opening parabola. The base of the arch is 10 ft. wide, and the arch is 15 ft. high at its center. How wide is the arch 10 ft. up?
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12/09/19

The area of the polygon is 27 mi2. What is the formula that shows the length of side a?
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12/08/19

What's Maria's weight?
The weight of an object above the surface of the earth varies inversely with the square of the distance from the center of the earth. If Maria weighs 125 pounds when she is on the surface of the... more
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12/07/19

How many day would it take to finish together?
David can finish a job in 7 days. Coby can finish the same job in 5 days. How many days would it take them to finish the job if they work together ?
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12/07/19

Need help with a trig problem please
I can't figure out how to do this problem. It saysSolve the equation on the interval 0<=theta<2piSin(2theta)=-1/2I can't figure out what the solution set is. Im stuck. Can anyone help? Is... more
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12/07/19

Exponential function showing relationship between y and t

290000 people increase by 1.2% each year
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