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Post New Question
All Questions
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220573 Questions
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Geometry
Plz help with quadrilaterals
In the diagram below, PQRS is a parallelogram with a perimeter of 26 and an area of 28. What is the perimeter of rectangle OSTQ? Include an explanation of how you solved the problem.
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Guest
7
mins ago
0
0
0
Counting
Help I have no idea
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 of candy?
read more ..
Guest
34
mins ago
0
2
0
plz help
(sqrt3+sqrt2)^2022*(2sqrt6-5)^1011
Guest
47
mins ago
0
0
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Probability
Help with probability
A bag contains five white balls and three black balls. Your goal is to draw two white balls.
read more ..
Guest
56
mins ago
0
2
0
Complex numbers
Help need help
Describe all solutions to zw - 3w - 2iw + 4z = 7iw + 5w + 11iz - 13 + 15i
where z and w are complex numbers.
Guest
1 hour ago
Jan 29, 2023
0
4
1
Counting
I have hard time counting the digits
Find the number of positive integers that satisfy the following conditions:
* Each digit is a 1 or a 2 or a 3
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Guest
2 hours ago
0
2
0
Counting
How do you count these
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
2 hours ago
0
3
0
Geometry
Can someone help plz
Let AB be a diameter of a circle, and let C be a point on the circle such that AC=8 and BC=4 The angle bisector of ACB intersects the circle at point M Find CM.
read more ..
Guest
2 hours ago
0
2
0
Algebra
Help how do I get started
A magician makes potions by combining maple syrup from a magical maple tree with ordinary water. The magician starts with a large supply of two potions: a red potion, which is 50% magical syrup by volume
read more ..
Guest
2 hours ago
-1
7
2
math sucks so I need some halp
4 is subtracted from the product of 5 and a number
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Guest
3 hours ago
0
7
2
HELP ASAP!!!!
Part 1:
Alejandra's Tapas Bar offers a menu consisting of $9$ savory and $5$ sweet dishes. You can also get a mix-and-match plate consisting of two different dishes on the menu.
How many different mix-and-match plates can you get consisting
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Guest
3 hours ago
0
5
0
Counting
This is a hard coloring problem
Sam wants to color the three sides of an equilateral triangle. He has two different colors to choose from. In how many different ways can Sam color the sides of the triangle? (Two
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Guest
4 hours ago
0
4
0
Probability
Need help with these plz
Valeria has three coins, each of which has a probability of 1/2 of coming up heads. On her first turn, she flips all three coins. If all three come up heads, then she stops. Otherwise,
read more ..
Guest
4 hours ago
0
7
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Counting
Need help quick
Find the number of ways of placing 4 balls in 5 boxes if the balls are distinguishable and the boxes are indistinguishable.
Guest
4 hours ago
0
7
1
Counting
help with counting plz
I run a book club with n people, not including myself. Every day, for 100 days, I invite members in the club to review a book. What is the smallest positive integer n so that I can avoid ever having the exact
read more ..
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Guest
5 hours ago
-1
11
1
help
Jen's phone uses a simple algorithm to count the number of strides she takes. The algorithm looks at the phone's accelerometer measurements, and counts a stride each time the acceleration goes from below to above $3$ g. Based on the number of strides counted
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Guest
5 hours ago
0
5
1
Counting
Plz help with 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
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Guest
6 hours ago
0
6
0
Geometry
Need help with 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
6 hours ago
0
7
0
Geometry
Help with triangles
Triangle ABC is a right triangle with angle BAC= 90 degrees and angle B > angle . Suppose AP is an altitude of the triangle, AQ is an angle bisector of the triangle, and AR is a median of the
read more ..
Guest
7 hours ago
0
5
0
Circles
I need help with circles
The two circles below are externally tangent. A common external tangent intersects line PQ at R. Find QR.
Guest
8 hours ago
0
7
0
Counting
A debate team consists of 5 freshmen and 4 sophomores. (Everyone is distinguishable.) In how many ways can they stand in line, so at least two of the sophomores are standing next to each other, and at least two of the freshmen are at the ends
read more ..
Guest
8 hours ago
0
8
0
Counting
Need help on this counting
We call a number cozy if every digit in the number is either even or next to an even digit. For example, a number is cozy if every digit in the number is either a 2 or next to a 2.
read more ..
Guest
8 hours ago
0
5
0
Expected Value
Help don't know expected value
Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 5 on them.
(a) What is the expected value of the number shown when we draw a single slip
read more ..
Guest
8 hours ago
0
6
0
Algebra
Help I need help with this equation
Find all real numbers x such that
(3^x - 27)^3 + (27x - 3*3) = (3x + 27x - 30 + 27*3)
read more ..
Guest
8 hours ago
0
4
0
Algebra
Plz help I don't get exponential functions
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
9 hours ago
0
7
0
Geometry
Need help plz
In the diagram below, angle PQR = angle PRQ = angle STR = angle TSR, RQ = 8, and SQ = 2. Find PQ.
Guest
9 hours ago
0
5
0
Algebra
Help with 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
9 hours ago
0
4
0
Exponential Functions
Need help with graphs
The graph of the exponential function f(x) is shown below. Find f(x).
Guest
9 hours ago
0
4
0
Binomial
Plz help with this
Fill in the blanks to make the equation true. Each blank should contain an integer.
read more ..
Guest
9 hours ago
0
6
0
Binomial
Need help with binomial
The function f(n) satisfies
binom(2n)n - binom(2n + 1)(2n) = f(n) *binom(2n + 1)(n + 1)
read more ..
Guest
9 hours ago
0
4
0
Counting
Need help with counting
Write the following expression as a single combination C(n,k) so that k neq 1 and n - k neq 1
read more ..
Guest
9 hours ago
0
6
0
Algebra
Plz help with this
Let x be a real number such that 625*x = 64. Then 125*x = ___ sqrt(____)
read more ..
Guest
9 hours ago
0
5
0
Counting
I need help with counting
In the olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are skaters, including Americans, in how many ways can the medals be awarded
read more ..
Guest
9 hours ago
0
5
1
Equation
Need help with 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.
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Guest
9 hours ago
0
5
0
Domain and Range
Need the domain and range
Find the domain and range of the function f(x) = 2(2 - 3x).
Guest
9 hours ago
0
7
0
Interest Rates
Help I don't know the formula
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
9 hours ago
0
5
1
Exponential Functions
Help the class didn't cover this
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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Guest
9 hours ago
0
6
2
Counting
Plz help I don't know.
In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color, and at lest three of the squares are red. How many ways are there
read more ..
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Guest
9 hours ago
0
4
0
Counting
Help plz with this
There are 97 students in South High School. South High School offers only Chinese and Spanish. There are more students in Chinese than in Spanish, and every student takes at least one language. If students
read more ..
Guest
9 hours ago
0
11
4
+100
Trig identities
Find
in radians
my original answer was pi/96, I used the half-angle formula but it was marked incorrect, any ideas what I did wrong and how I can fix it?
read more ..
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YourAverageDummy
10 hours ago
0
5
0
Venn diagram
Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are 100 dogs in the school.
* 62 have blue ribbons, 65 have
read more ..
Guest
10 hours ago
0
6
0
Counting
Need help plz
At my office, 16 people own cats, people own dogs, and people own both cats and dogs. How many people own a cat or a dog?
read more ..
Guest
10 hours ago
0
10
1
Counting
Plz help with counting
At a meeting, five scientists, two mathematicians, five journalists, two biologists, and three politicians are to be seated around a circular table. How many different arrangements are possible
read more ..
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Guest
11 hours ago
0
10
1
+4
помогите
найди при каком значении переменной выражения -70x-1x и 139x+70 равны
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perse
Jan 29, 2023, 1:37:30 PM
0
11
2
Find the number of all 3-digit numbers which have remainders 1 and 3 when divided by 4 and 5 (respectively).
Find the number of all 3-digit numbers which have remainders 1 and 3 when divided by 4 and 5 (respectively).
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Guest
Jan 29, 2023, 1:05:13 PM
0
10
2
Help Please
The number of students in RSM online classes is more than 90 and fewer that 140 and 1 less than a multiple of 3, 3 less than a multiple of 5, and 5 less than a multiple of 7. How many students are in RSM online classes?
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Guest
Jan 29, 2023, 1:04:08 PM
0
13
2
Urgent Please spent 2 hours cant figure it out
The remainder after division of some prime number by 60 is a composite number. What is that composite number?
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Guest
Jan 29, 2023, 1:03:02 PM
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