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All Questions
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227933 Questions
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21
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square roots
Find all values of x such that \sqrt{4x^2} + \sqrt{x^2} = 6 + 3x.
Guest
Jun 6, 2023
Jun 5, 2023
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20
2
help
An ant was randomly put somewhere on the surface of a regular tetrahedron with an edge length of 1 foot. A crumb was then randomly placed on a vertex of the tetrahedron. What is the probability that the ant can reach the crumb by walking less than foot
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Guest
Jun 5, 2023
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25
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bisectors
Help Im bad at geometry
In triangle AB, let the angle bisectors be BY and CZ. Given AB = 16, AY = 16, and CY = 16, find BC and BZ.
Guest
Jun 5, 2023
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24
2
help plz
Im having trouble with this
One ordered pair (a,b) satisfies the two equations ab^4 = 48 and ab = 72. What is the value of b in this ordered pair? (Note: you may have to use the Tab key to get your cursor into the middle answer box
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Guest
Jun 5, 2023
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24
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trapezoid
Can anyone help with this?
Let ABCD be a trapezoid with bases AB and CD. Let P be a point on side CD, and let X, Y be the feet of the altitudes from P to AD, BC respectively. Prove that if AD = 5, BC = 7, AB = 6, CD = 12,
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Guest
Jun 5, 2023
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22
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system
plz help with systems
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb
read more ..
Guest
Jun 5, 2023
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22
0
help need help
this might seem easy but i am easily confused.
Find the number of ways that Magnus can give out 10 identical stickers to 8 of his friends. (Not everyone has to get a sticker.)
Guest
Jun 5, 2023
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24
1
What is the sum of all positive integers $t$ such that $1.2t \leq 9.6$?
What is the sum of all positive integers $t$ such that $1.2t \leq 9.6$?
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Guest
Jun 5, 2023
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22
0
plz help
I am really stuck on this
In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in
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Guest
Jun 5, 2023
0
23
1
ratios
A bag contains yellow, green, blue, and white marbles. The ratio of yellow, green, blue, and white marbles is 1:2:3:4. If the bag contains 180 marbles, then how many blue marbles are there?
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Guest
Jun 5, 2023
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25
1
proportion
I have to paint one side of a wall. The wall is 12 meters tall and 120 meters long. Each gallon of paint covers 150 square feet. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons
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Guest
Jun 5, 2023
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21
1
What interval consists of all $u$ such that neither $2u$ nor $-20u$ is in the interval $(-\infty,-1)$ ?
Helppppp
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Guest
Jun 5, 2023
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23
1
proportion
All members of our painting team paint at the same rate. If 20 members can paint a 2000 square foot wall in 40 minutes, then how long would it take the 20 members to paint a 6000 square foot wall, in minutes?
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Guest
Jun 5, 2023
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30
2
Find the set of all $z$ such that neither $2+z$ nor $2-z$ is in the interval $(-1,1]$. Express your answer as an interval or as a union of i
Help ASAP pls everyone
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Guest
Jun 5, 2023
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28
3
+1107
LCD or no LCD
Hi friends,
I understand if I really seem very daft for asking this question, but I'm going to ask anyway...if we have this:
we get the LCD, which is 6
so we have:
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juriemagic
Jun 5, 2023
0
21
2
help with rates
I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 50 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive?
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Guest
Jun 5, 2023
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22
1
I’m very confused :(
Factor the expression using the two different techniques listed for Parts 1(a) and 1(b).
36a^4b^10-81a^16b^20
(a) Factor the given expression using the GCF monomial.
(b) Factor the given expression using the
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Guest
Jun 5, 2023
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20
1
please help?? unable to do this
Function $C$ is defined on positive integers as follows:Find all $n$ such that $C^{3}(n) = 16$.
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Guest
Jun 5, 2023
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24
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system
Need help with system
Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations
a + 2b + 3c + 4d + 5e = 41
2a + 3b + 4c + 5d + e = 15
read more ..
Guest
Jun 5, 2023
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26
0
need help
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
Jun 5, 2023
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