All Questions ⁺⁰237642 Questions

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Graphing question

The graph of y = f(x) is shown below.

For each point (a,b) that is on the graph of y = f(x), the point ((a - 7)/2, (3b + 1)/4) is plotted, forming the graph of another function y = g(x). As an example, the point read more ..

Guest Jan 3, 2023

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154

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counting

In how many ways can you distribute 10 indistinguishable balls among 8 distinguishable boxes, if at least one of the boxes must be empty?

Guest Jan 3, 2023

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153

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Complex numbers

Describe all solutions to zw - 3w - 2iw + 4z = 7iw + 5w + 11iz - 13 + 15i
where z and w are complex numbers.

Guest Jan 3, 2023

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195

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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?

Guest Jan 3, 2023

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159

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binomials

For nonnnegative integers a and b, where a >= 2 and b >= 2, simplify
binom{a + b}{2} + binom{2a + b}{2} + binom{a + 2b}{2} - binom{a - b}{2}

Guest Jan 3, 2023

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206

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+4

What do I do?

Celebrity A has 400 followers on social media and gains 75 followers each day. Celebrity B has 1,000 followers on social media and loses 25 followers a day. After how many days will the celebrities have the same number of followers?

apyromaniak Jan 3, 2023

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215

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help plz

Find the value of a so that the lines with the given equations are perpendicular.
y=2x+13

6y+ax=6 read more ..

Guest Jan 3, 2023

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176

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hard algebra

If x + 1/x = 5, then compute the value of
(x - 2)^2 + 25(x - 2)^2

Guest Jan 3, 2023

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184

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Coordinates

Triangle ABC has vertices at A(5,8), B(3,3), and C(8,1). The point D with coordinates (m,n) is chosen inside the triangle so that the three small triangles ABD, ACD and BCD all have equal areas. What is the value of 10m + n?
<read more ..

Guest Jan 3, 2023

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221

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plz help

Marguerite drove 100 miles in 2.4 hours. If Sam drove for 8 hours at the same average rate as Marguerite, how many miles did he drive?

Guest Jan 3, 2023

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224

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:] can you please help

help plz.....

If the system of equations 3x+y=a, 2x+5y=2a, has a solution (x,y) when x=2, compute a.

Guest Jan 3, 2023

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160

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Factoring

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Jan 3, 2023

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169

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Circles

The two circles below are externally tangent. A common external tangent intersects line PQ at R. Find QR.

Guest Jan 3, 2023

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164

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Algebra

Fill in the blanks to make the equation true.

xy xy^2 xy^3 x^2 y x^3 y x^2 y^2 x^2 y^3 x^3 y^2
read more ..

Guest Jan 3, 2023

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191

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Help plz

A school's band member money by selling magazine subscriptions and shirts. Their profit from selling shirts was $5 per shirt minus a one-time $40 set-up fee. Their profit from selling magazine subscriptions was $4 per subscription. They made exactly the read more ..

Guest Jan 3, 2023

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152

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Algebra

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

___ + ____ = ___ + _____
read more ..

Guest Jan 3, 2023

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163

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Math (10-3)

A kite is on a 25 m string. The kite is directly above a barn that is 18 m away from the person holding the kite string. What angle does the string make with the ground?

Guest Jan 3, 2023

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238

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I have no idea what this means plz help

The larger of two consecutive odd integers is three times the smaller. What is their sum?

read more ..

Guest Jan 3, 2023

Jan 2, 2023

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189

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equation

Find all real numbers x such that
(3^x - 27)^3 + (27x - 3)^3 = (3x + 27x - 30)^3

Guest Jan 2, 2023

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184

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help algebra

Let a and b be real numbers such that a + b = 4 and a^4 + b^4 = 16.
(a) Find all possible values of ab
(b) Find all possible values of a + b
(c) Find all possible values of a and b

Guest Jan 2, 2023

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