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All Questions
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229750 Questions
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76
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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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99
1
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.
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Guest
Jan 28, 2023
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83
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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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85
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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
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Guest
Jan 28, 2023
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110
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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
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Guest
Jan 28, 2023
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84
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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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79
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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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104
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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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83
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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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112
2
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?
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Guest
Jan 28, 2023
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101
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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.
Guest
Jan 28, 2023
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111
1
Algebra
Need to solve this soon
Fill in the blank:
3*___ = 81*5
read more ..
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Guest
Jan 28, 2023
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95
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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?
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Guest
Jan 28, 2023
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68
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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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77
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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
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Guest
Jan 28, 2023
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71
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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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76
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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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73
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Algebra
Plz help with this
Let x be a real number such that 625*x = 64. Then 125*x = ___ sqrt(____)
Guest
Jan 28, 2023
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78
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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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72
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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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112
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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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123
1
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?
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Guest
Jan 28, 2023
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71
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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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67
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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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