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All Questions
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237643 Questions
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206
2
Counting
Help please somebody how do I do these
Let n be a positive integer. Let k be a positive integer.
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Guest
Jan 20, 2023
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190
1
Rewrite the following equation in slope-intercept form.
Rewrite the following equation in slope-intercept form.
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Guest
Jan 20, 2023
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206
2
Halp, please! GEOMETRY
In the diagram below, is a point on segment such that and is not on Line segments and intersect at
Can
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Guest
Jan 20, 2023
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182
2
Distributions
Help I'm really stuck on this problem
Find the number of ways of placing 4 balls in 5 boxes if the balls are distinguishable and the boxes are distinguishable.
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Guest
Jan 20, 2023
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181
1
Geometry
please help with this due soon
In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR
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Guest
Jan 20, 2023
Jan 19, 2023
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163
1
tickets to a movie cost 7.25 for adults and 5.50 for students.A group of friends purchase 8 tickets for 52.75. how many adult tickets and st
tickets to a movie cost 7.25 for adults and 5.50 for students.A group of friends purchase 8 tickets for 52.75. how many adult tickets and students tickets were purchase
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Guest
Jan 19, 2023
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179
1
Geometric Probability
Help this is so hard
Let PQR be an equilateral triangle, centered at O. A point X is chosen at random inside the triangle. Find the probability that X is closer to O than to any of the sides. (In other
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Guest
Jan 19, 2023
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174
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Expected value
Help with this I don't understand
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.
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Guest
Jan 19, 2023
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155
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Expected value
Help plz with this problem
The grid below is made up of line segments, like the line segment in red.
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Guest
Jan 19, 2023
+1
162
0
Counting paths
Can anyone help?
In the array below, in how many different ways can we start with the letter A and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?
Guest
Jan 19, 2023
+1
206
1
Expected value
need help badly
In a sequence of coin flips, a run is a series of consecutive coin flips that are all the same. For example, in the sequence
the red letters form a run.
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Guest
Jan 19, 2023
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194
1
Probability
help how do i solve this
The following cards are dealt to three people at random, so that everyone gets the same number of cards. What is the probability that everyone gets a red card?
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Guest
Jan 19, 2023
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160
0
i need help
The degree of the polynomial function f(x) is 3. The roots of the equation f(x)=0 are −1, 0, and 4. Which graph could be the graph of f(x)?
Guest
Jan 19, 2023
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179
1
help
Krista has $120. Each week she saves an additional $15. An arithmetic sequence is given. 94, 87, 80, 73, 66, ... Which function correctly represents the explicit rule of this sequence?
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Guest
Jan 19, 2023
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191
1
Distributions
Is there a counting technique for this?
(a) In how many ways can you distribute 4 distinguishable balls among 6 indistinguishable boxes?
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Guest
Jan 19, 2023
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172
0
Probability
How to use geometric probability
Triangle XYZ is equilateral, with O as its center. A point P is chosen at random. Find the probability that P is closer to point O than to any of the side lengths.
Guest
Jan 19, 2023
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205
1
Sequence
Help I'm stuck
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?
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Guest
Jan 19, 2023
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166
0
Geometry
Can someone draw the diagram?
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
Jan 19, 2023
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193
1
Fractions
Help this is hard
Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 1 greater than the denominator. He then writes several more fractions. To make each new fraction, he
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Guest
Jan 19, 2023
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176
0
Grid
Please help quick
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
Jan 19, 2023
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