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230852 Questions
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77
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trig question
Help with this trig
In the diagram below, what are AC and BC?
Guest
Jan 25, 2023
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81
0
Geometry
Help with angles on this
Triangle ABC is a right triangle with angle BAC= 90 degrees and angle B > angle . Suppose AP is an altitude of the triangle, AQ is an angle bisector of the triangle, and AR is a median of
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Guest
Jan 25, 2023
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86
0
help me find answer
Give an example for each statement
6.) The sum of two binomials is a monomial 7.)The sum of two trinomials is a binomial
Guest
Jan 25, 2023
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83
0
Coefficient
Help plz help
Find the coefficient of u^2 v^9 in the expansion of (2u - 3v + u^2 - v^2)^9.
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Guest
Jan 25, 2023
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80
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Counting
This is a counting problem plz help
Syd chooses two different primes, both of which are greater than 10 and multiplies them. The resulting product is less than How many different products could Syd have ended
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Guest
Jan 25, 2023
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89
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Counting
Help I use binomials
A fair coin is tossed 12 times. How many different sequences of tosses could there have been, if the number of tosses was at least
Guest
Jan 25, 2023
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89
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Coordinates
Need help with this right
A median of a triangle is a line segment joining a vertex of a triangle to the midpoint of the opposite side. The three medians of a triangle are drawn below.
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Guest
Jan 25, 2023
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122
1
Probability
Can anyone help with this?
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
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Guest
Jan 25, 2023
Jan 24, 2023
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89
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Counting
Need help quick
(a) Find the number of ways that Magnus can give out 20 identical stickers to 5 of his friends. (Not everyone has to get a sticker.)
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Guest
Jan 24, 2023
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100
1
help
Our club has 25 members, and wishes to pick a president, secretary, and treasurer. In how many ways can we choose the officers, if individual members may hold more than one office?
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Guest
Jan 24, 2023
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106
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Binomial Theorem
Help how to use binomials
For some real number a and some positive integer n, the first few terms in the expansion of (1 + ax)^n are
1 + 10x + 150 x^2 + cx^3 + ...
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Guest
Jan 24, 2023
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136
3
Solve the system by substitution.
y=− 6x y= − 8x −14 Solve the system by substitution.
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Guest
Jan 24, 2023
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148
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math question
what is the tens digit of the smallest positive number that uses each of the odd digits exactly once?
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Guest
Jan 24, 2023
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96
1
help
Six 6-sided dice are rolled. What is the probability that three of the dice show prime numbers and the rest show composite numbers? (I have tried and gotten 5/16, but is incorrect. please help)
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Guest
Jan 24, 2023
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154
2
+9
Whispering halls are buildings that are elliptically shaped.
Whispering halls are buildings that are elliptically shaped. Observers who stand at the foci of the ellipse can hear each other whispering across the room. One whispering hall is an ellipse which is 52 feet wide and 94 feet tall.
A) What standard
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lina1290
Jan 24, 2023
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80
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Geometry
I need help with geometry
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.
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Guest
Jan 24, 2023
0
107
1
Probability
Help meee with 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 24, 2023
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110
2
Counting
help how do you do this thing
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
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Guest
Jan 24, 2023
+1
125
1
+9
I give up... Can someone please help/explain this to me?
What two rational expression sum to 3x-2/x^2-x-12
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lina1290
Jan 24, 2023
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108
1
Geometry
Please help with difficult geometry
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.
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Guest
Jan 24, 2023
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83
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Counting
I need help right away
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 24, 2023
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