All Questions ⁺⁰230619 Questions

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105

1

Counting

Need help with counting

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 Jan 30, 2023

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81

0

Counting

Plz 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 Jan 30, 2023

0

129

1

Probability

Help with probability plz

Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 20?

Guest Jan 30, 2023

0

75

0

Counting

I have trouble with this

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 30, 2023

0

109

1

Counting

need help

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 read more ..

Guest Jan 30, 2023

0

142

5

Algebra

I need help with a system

Let a and b be real numbers such that a^3 + 3ab^2 = 679 and a^3 - 3ab^2 = 673. Find a - b.

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Guest Jan 30, 2023

0

87

0

Probability

Can anyone help with this question

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. read more ..

Guest Jan 30, 2023

0

103

1

Interest Rates

Need help to compute interest rate calculations

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, read more ..

Guest Jan 30, 2023

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78

0

Binomials

Help I need help with binomials

(a) Simplify (n/k)/(n/(k - 1)) read more ..

Guest Jan 30, 2023

0

107

1

Algebra

Help to fill in the blank

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

Guest Jan 30, 2023

0

78

0

Exponential functions

How do you do graphs

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 30, 2023

0

78

0

Algebra

Help I need to factor

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 30, 2023

0

85

0

Counting

I need help with counting paths

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) read more ..

Guest Jan 30, 2023

0

81

0

Probability

I need the answer for this

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 30, 2023

0

100

1

Sequence

Help with sequences

Cai writes down the list of positive integers, excluding squares and cubes and all perfect powers. His sequence starts
2, 3, 5, 6, 7, 10, 11, ...
What is the 100th term in Cai's list?

Guest Jan 30, 2023

0

80

0

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. read more ..

Guest Jan 30, 2023

0

92

1

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 Jan 30, 2023

0

95

1

plz help

(sqrt3+sqrt2)^2022*(2sqrt6-5)^1011

Guest Jan 30, 2023

0

99

1

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 Jan 30, 2023

0

84

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 Jan 30, 2023

Jan 29, 2023

0

122

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 read more ..

Guest Jan 29, 2023

0

83

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 Jan 29, 2023

0

79

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 Jan 29, 2023

0

76

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 Jan 29, 2023

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