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All Questions
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230566 Questions
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42
1
+7
What are the solutions to the equation on [0,2pi)?
What are the solutions to the equation on [0,2π)? cot(3x)=−√3
Drag all solutions to the box to correctly complete the table.
(The possible answers are: pi/3, pi/9, pi/18, 5pi/3, 5pi/18, 7pi/18, 11pi/18, 17pi/18,
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WinterFur
Mar 21, 2023
0
55
0
expected value
I need help with these
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 of paper?
read more ..
Guest
Mar 21, 2023
0
62
1
Quadratics
Which two numbers can multiply into 5184 but add into -144?
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Guest
Mar 21, 2023
0
66
0
binomials
(a) Simplify (n/k)/(n/(k - 1))
(b) For some positive integer n, the expansion of (1 + x)^n has three consecutive coefficients a, b, c that satisfy 1:8:28. What must n be?
Guest
Mar 21, 2023
0
68
0
A cylinder has a height of 16 feet and a radius of 19 feet. What is its volume? Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredt
A cylinder has a height of 16 feet and a radius of 19 feet. What is its volume? Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
Guest
Mar 21, 2023
0
63
0
counting
In how many ways can three points be selected from the grid below so that they form a right isosceles triangle?
Guest
Mar 21, 2023
0
73
2
question
Last year 950 people attended a town's annual parade. This year 1,520 people attended. What was the percent increase in attendance from last year to this year?
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Guest
Mar 21, 2023
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64
0
geometry
Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.
Guest
Mar 21, 2023
0
62
0
Counting
You are given the 4 x 4 grid below.
(a) Find the number of ways of placing 8 counters in the squares (at most one counter per square), so that each row contains exactly two counters.
(b) Find the number of ways
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Guest
Mar 21, 2023
0
64
0
counting
Help how to do this
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
Mar 21, 2023
0
78
1
+8
PLS HELP
Simplify the following expression into a simplified fraction,
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sxnshiine
Mar 21, 2023
0
68
1
Sector Area Level 1
In circle M with m∠LMN=82m∠ andLM=9 units find area of sector LMN. Round to the nearest hundredth.
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Guest
Mar 21, 2023
0
67
0
Find the cardinal number for the following sets.
Find the cardinal number for the following sets.
A =
{110,
111,
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Guest
Mar 21, 2023
0
66
0
counting
Help I need to count this
Catherine rolls a standard 6-sided die five times, and the product of her rolls is . How many different sequences of rolls could there have been? (The order of the rolls matters.)
Guest
Mar 21, 2023
0
56
1
counting
Find the number of positive integers that satisfy both the following conditions:
Each digit is a 1 or a 2
The sum of the digits is 3
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Guest
Mar 21, 2023
0
61
2
geometry
Plz help with geometry problem
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 probl
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Guest
Mar 21, 2023
0
66
0
counting
Help how are you supposed to do this
Three adults and three children are to be seated at a circular table. In how many different ways can they be seated if each child must be next to at least one adult? (Two seatings
read more ..
Guest
Mar 21, 2023
0
61
0
Algebra
How do I do this
Find the constant term in the expansion of (2z - 1/(z*sqrt(z)) + 1)^4.
Guest
Mar 21, 2023
0
59
0
Precalc
The position of a particle is given by the parametric equations
x = 3 + 2 sin 2t - cos t
y = 4 + cos 4c + sin 3t
as t ranges over all real numbers.
read more ..
Guest
Mar 21, 2023
0
73
1
counting
Sam writes down the numbers 1, 2, 3, ..., 99
(a) How many digits did Sam write, in total?
(b) Sam chooses one of the digits written down, at random. What is the probability that Sam chooses a 0?
(c) What is the sum of all
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Guest
Mar 21, 2023
0
60
0
Algebra
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
Mar 21, 2023
0
74
1
Renee is going bowling.
Renee is going bowling.
The cost per game is $2.50.
Renee will need to rent a pair of bowling shoes for $1.50.
She can spend up to $16.00 to bowl and rent a pair of shoes.
read more ..
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Guest
Mar 21, 2023
0
73
1
Solve a system of equations using augmented matrices: word problems
Write a system of equations to describe the situation below, solve using an augmented matrix, and fill in the blanks.
Wendy likes to make desserts for bake sales. Last month, she made 1 batch of cookies, which called for 2 eggs total. The month before,
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Guest
Mar 21, 2023
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