All Questions ⁺⁰237827 Questions

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Geometry

Help I need angle bisectors

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

Guest Jan 28, 2023

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207

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Geometry

Help with geometry problem

In the diagram below, D is a point on segment CE such that segments AD and BE are parellel and point A is not on segment BC. Line segments AD and BC intersect at point P.
read more ..

Guest Jan 28, 2023

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169

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Complex numbers

How do you solve

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

Guest Jan 28, 2023

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178

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Counting

Help need help here

There is a group of five children, where two of the children are twins. How many ways can I distribute 10 identical pieces of candy to the children, if the twins must get an equal amount read more ..

Guest Jan 28, 2023

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218

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Probability

Help with hard probability

My sock drawer contains two red socks, two white socks, and two blue socks. For three days in a row, I pull out two socks out of my sock drawer at random. What is the probability that I get matching read more ..

Guest Jan 28, 2023

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176

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Counting

Plz help with counting

Find the number of ways of placing 4 balls in 5 boxes if the balls are indistinguishable and the boxes are distinguishable.

Guest Jan 28, 2023

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170

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Probability

Help plz

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 28, 2023

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200

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Counting

Help how do I do this

Find the number of paths from A to I, if each step must be in a right-ward direction. (For example, one possible path is A C D E F G H I)

Guest Jan 28, 2023

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177

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physics

Rain A 2.45-mg raindrop falls to the ground. As it is falling, what magnitude of force does it exert on Earth?

Guest Jan 28, 2023

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220

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Algebra

Help with factoring problem

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 28, 2023

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187

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Exponential functions

How to graph exponential functions

Each graph below is the graph of an exponential function of the form ka^x (where a > 0). Match each graph with the correct option.

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210

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Algebra

Need to solve this soon

Fill in the blank:
3*___ = 81*5 read more ..

Guest Jan 28, 2023

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195

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Interest rates

How do you do interest rates

Chuck deposits $2000 into a bank account that compounds annually at an interest rate of . Assuming there are no other transactions, what will the balance be after years, in dollars? read more ..

Guest Jan 28, 2023

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160

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Domain

Need domain and range

Find the domain and range of the function f(x) = 2(2 - 3x).

Guest Jan 28, 2023

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175

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Counting problem

I need this soon

We define a bow-tie quadrilateral as a quadrilateral where two sides cross each other. An example of a bow-tie quadrilatera is shown below. distinct points are chosen on a circle. We draw all read more ..

Guest Jan 28, 2023

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162

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Counting

How do you solve this

Each unit square of the 4 x 4 grid below is to be filled in with the number 1, 2, 3 or 4 so that
* each row contains the numbers 1, 2, 3, and 4 in some order read more ..

Guest Jan 28, 2023

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170

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Arrangements

Plz help with the arrangements

Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3

Guest Jan 28, 2023

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164

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Algebra

Plz help with this

Let x be a real number such that 625*x = 64. Then 125*x = ___ sqrt(____)

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169

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Math

Can you solve this equation?

Find all values of c such that 3*(2c + 1) = 28*(3*c) - 9. If you find more than one value of c, then list your values in increasing order, separated by commas.

Guest Jan 28, 2023

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165

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Algebra

I need help with exponentials

Select all the correct statements. (For this problem, we assume that an exponential function is of the form ka^x where a > 0)
read more ..

Guest Jan 28, 2023

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205

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Probability

Probabiity of drawing cards needed

In Ms. Q's deck of cards, every card is one of four colors (red, green, blue, and yellow), and is labeled with one of seven numbers (1, 2, 3, 4, 5, 6, and 7). Among all the cards of each color, read more ..

Guest Jan 28, 2023

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229

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Probability

Help hard probability

A stick is broken at two points, at random. If the length of the stick is 6, then what is the probability that all three resulting pieces are shorter than 3 units?

Guest Jan 28, 2023

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164

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Counting

Help need to count solutions.

Find the number of solutions to
x_1 + x_2 + x_3 + x_4 + x_5 + x_6 + x_7 + x_8 + x_9 + x_10 <= 2 read more ..

Guest Jan 28, 2023

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157

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Algebra

How is this possible.

Let S be the set of all real numbers of the form
a1/3 + a2/3^2 + a3/3^3 + ....
where a_i is equa to either 1 or 0 or 2 for each i. read more ..

Guest Jan 28, 2023

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