All Questions ⁺⁰237643 Questions

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184

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Equation

Find all real numbers a that satisfy
1/(a^3 + 7) = -a^3/(a^3 + 7)

Guest Nov 20, 2022

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239

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The points $(9, -5)$ and $(-3, -1)$ are the endpoints of a diameter of a circle. What is the sum of the coordinates of the center of the cir

The points $(9, -5)$ and $(-3, -1)$ are the endpoints of a diameter of a circle. What is the sum of the coordinates of the center of the circle?

Guest Nov 20, 2022

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238

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MAth

In a set of eight consecutive integers, the smallest integer is more than 3/5 of the largest integer. What is the smallest possible value of the sum of the eight integers?

Guest Nov 20, 2022

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163

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help system

Find all solutions to the system
a + b = 14
a^3 + b^3 = 812 + a^2 + b^2

Guest Nov 20, 2022

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200

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quadratic

If t is a real number, what is the maximum possible value of the expression -t^2 + 8t -4 - 3t^2 - 11?

Guest Nov 20, 2022

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221

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plz help

Seven years ago, Grogg's dad was 9 times as old as Grogg, and 6 years ago, his dad was 3 times as old as Grogg. How old is Grogg's dad currently?

Guest Nov 20, 2022

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169

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Let f(x)= 1/x-3. Find the largest x that is not in the domain of g(x)=f(f(x))

Please help, I'm not sure where to start!

Guest Nov 20, 2022

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263

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Probability

The following cards are dealt to three people at random, so that everyone gets the same number of cards. What is the probability that everyone gets a red card?

[There are three red cards and three blue cards]

Guest Nov 20, 2022

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167

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Domain

The domain of the function r(x) = x/(1 - x) is (-inf,1) U (1,inf). What is the range?

Guest Nov 20, 2022

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178

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Triangle

In triangle ABC, M is the midpoint of AB. Let D be the point on BC such that AD bisects BAC and let the perpendicular bisector of AB intersect AD at E If AB=44, AC=30 and ME=10 then find the area of triangle BMD.

Guest Nov 20, 2022

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178

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another system

Solve for (x,y) in the system of equations
2x + y = -7 + y
x = 4 + 2y + x

Guest Nov 20, 2022

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169

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need help with system

Find the ordered pair (s,t) that satisfies the system
s/2 + 5t = 3 + 5t
3t - 6s = 9 + 3t

Guest Nov 20, 2022

Nov 19, 2022

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177

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Angles

Find all possible values of theta if cos (2*theta) = cos (theta)

Guest Nov 19, 2022

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174

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Angles

Find the smallest angle x such that x < 90 and 6*tan^2(5x - 3) = 18.

Guest Nov 19, 2022

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175

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help

Guest Nov 19, 2022

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184

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Simplify

Assuming that p neq 0 and q neq 0, simplify p*q3*3*4*2p*q*2*p*q*q^3

Guest Nov 19, 2022

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195

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Equation

Fill in the blanks so that the resulting equation has no solutions.

___ + ____ = ___ + _____
read more ..

Guest Nov 19, 2022

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253

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help pls

Five times a number is divided by 7 more than that number minus 4. If the result is 18, then what was the original number.

Guest Nov 19, 2022

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183

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Algebra

Find all y such that 3y - 5/6 = 2y - 1 + 3

Guest Nov 19, 2022

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178

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Algebra

Fill in the blanks to make the equation true: 8/125*___ = 5/2

Guest Nov 19, 2022

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214

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Help pls

The perpendicular bisector of line segment is the line that passes through the midpoint of and is perpendicular to .
What is an equation for the perpendicular bisector of the line segment joining and ? Write read more ..

Guest Nov 19, 2022

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174

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Need help

I am stuck on this problem: Find the area of the region enclosed by the graph of x^2 + y^2 = 2x - 6y - 10x + 14y + 88.

Guest Nov 19, 2022

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241

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Base numbers

What is the average of all positive integers that have four digits when written in base 3, but two digits when written in base 4? Write your answer in base 10.

Guest Nov 19, 2022

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185

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Rectangles

Two rectangles overlap, as shown below. Find the area of the overlapping region (which is shaded) if AB = BE = 2 and AD = ED = 4.

read more ..

Guest Nov 19, 2022

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180

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need help math

A tribe of eight villagers sits in a circle around a campfire. If the chief must sit beside his mother, how many different seating arrangements are possible? Two seating arrangements are considered the same if each individual has the same person to the read more ..

Guest Nov 19, 2022

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