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230933 Questions
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counting
My square patio is tiled with square tiles, all the same size. All the tiles are gray, except the tiles along the two diagonals, which are all yellow. (The corners are yellow, the center is yellow, and all the tiles along the diagonal in between
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Guest
Mar 23, 2023
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80
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+132
Please help!
Sorry, I know this is a repost, but it won't let me edit. https://web2.0calc.com/questions/pre-calc-help-please If I say z^n=1, could I do $(\frac{1}{e^{\frac{2\pi i k}{7}}-1})^7=z^7$, then $\frac{1}{(e^{\frac{2\pi i k}{7}}-1)^7}$? Idk tbh.
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Saphia1123
Mar 23, 2023
Mar 22, 2023
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63
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geometry
Let B, A, and D be three consecutive vertices of a regular -gon. A regular heptagon is constructed on AB with a vertex C next to A Find angle BCD in degrees.
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Mar 22, 2023
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73
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Help pls
Let p(x) = 1-(1/x)
What is p^6(-1/2?) What does this notation mean?
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Guest
Mar 22, 2023
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79
3
+132
Pre Calc Help Please!
So I'm trying to prove the real parts of a solution are all equal. I have the possible solutions in the form of $\frac{1}{e^{\frac{2\pi ik}{7}}-1}$ with $k=1,2,3,4,5,6$. How can I do this? PS, the original equation given was $(z+1)^7=z^7$.
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Saphia1123
Mar 22, 2023
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66
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sequence
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 22, 2023
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69
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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 (and
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Mar 22, 2023
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66
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plz help
When it rains, every student in Margo's school brings a raincoat, an umbrella, or both. And of the students bring both. The total number of umbrellas brought is equal to twice the number of raincoats.
What percent of the
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Guest
Mar 22, 2023
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79
1
Probability
A card game using 36 unique cards: four suits (diamonds, hearts, clubs, and spades) with cards numbered from 1 to 9 in each suit. A hand is a collection of 9 cards, which can be sorted however the player chooses. What is the probability of getting all four
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Guest
Mar 22, 2023
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Probability
A box contains 24 tiles. Each tile has certain properties:
Each tile is made of wood or plastic.
Each tile is red, yellow, or blue.
Each tile is a triangle, square, pentagon, or circle.
There is exactly one tile
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Guest
Mar 22, 2023
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72
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What value of x will make the length of the box three times as big as the width?
What value of x will make the length of the box three times as big as the width?
Length: 20-2x
Guest
Mar 22, 2023
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67
0
this expression equals 4, change it to equal 42 console.log(1 + 5 - 2 );
this expression equals 4, change it to equal 42
console.log(1 + 5 - 2 );
Guest
Mar 22, 2023
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65
2
I just need help with an asigntment pls fast
In webshop 1 a trainingbycikel cost 3000$ now its only 2160$ how much is the discount in %
Pls help fast🥺🥺ðŸ˜ðŸ˜
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Guest
Mar 22, 2023
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63
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geometry
In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that the
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Mar 22, 2023
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66
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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 22, 2023
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