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All Questions
+0
229738 Questions
-2
103
2
math sucks so I need some halp
4 is subtracted from the product of 5 and a number
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Guest
Jan 29, 2023
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97
2
HELP ASAP!!!!
Part 1:
Alejandra's Tapas Bar offers a menu consisting of $9$ savory and $5$ sweet dishes. You can also get a mix-and-match plate consisting of two different dishes on the menu.
How many different mix-and-match plates can you get consisting
read more ..
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Guest
Jan 29, 2023
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85
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Counting
This is a hard coloring problem
Sam wants to color the three sides of an equilateral triangle. He has two different colors to choose from. In how many different ways can Sam color the sides of the triangle? (Two
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Guest
Jan 29, 2023
0
85
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Probability
Need help with these plz
Valeria has three coins, each of which has a probability of 1/2 of coming up heads. On her first turn, she flips all three coins. If all three come up heads, then she stops. Otherwise,
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Guest
Jan 29, 2023
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76
0
Counting
Need help quick
Find the number of ways of placing 4 balls in 5 boxes if the balls are distinguishable and the boxes are indistinguishable.
Guest
Jan 29, 2023
0
107
1
Counting
help with counting plz
I run a book club with n people, not including myself. Every day, for 100 days, I invite members in the club to review a book. What is the smallest positive integer n so that I can avoid ever having the exact
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Guest
Jan 29, 2023
-1
120
1
help
Jen's phone uses a simple algorithm to count the number of strides she takes. The algorithm looks at the phone's accelerometer measurements, and counts a stride each time the acceleration goes from below to above $3$ g. Based on the number of strides counted
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Guest
Jan 29, 2023
0
108
1
Counting
Plz help with this
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 29, 2023
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75
0
Geometry
Need help with angle bisectors
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 29, 2023
0
79
0
Geometry
Help with triangles
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 the
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Guest
Jan 29, 2023
0
79
0
Circles
I need help with circles
The two circles below are externally tangent. A common external tangent intersects line PQ at R. Find QR.
Guest
Jan 29, 2023
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82
0
Counting
A debate team consists of 5 freshmen and 4 sophomores. (Everyone is distinguishable.) In how many ways can they stand in line, so at least two of the sophomores are standing next to each other, and at least two of the freshmen are at the ends
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Guest
Jan 29, 2023
0
86
0
Counting
Need help on this counting
We call a number cozy if every digit in the number is either even or next to an even digit. For example, a number is cozy if every digit in the number is either a 2 or next to a 2.
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Guest
Jan 29, 2023
0
84
0
Expected Value
Help don't know expected value
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
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Guest
Jan 29, 2023
0
78
0
Algebra
Help I need help with this equation
Find all real numbers x such that
(3^x - 27)^3 + (27x - 3*3) = (3x + 27x - 30 + 27*3)
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Guest
Jan 29, 2023
0
84
0
Algebra
Plz help I don't get exponential functions
Select all the correct statements. (For this problem, we assume that an exponential function is of the form ka^x where a > 0)
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Guest
Jan 29, 2023
0
88
0
Geometry
Need help plz
In the diagram below, angle PQR = angle PRQ = angle STR = angle TSR, RQ = 8, and SQ = 2. Find PQ.
Guest
Jan 29, 2023
0
78
0
Algebra
Help with factoring
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
Jan 29, 2023
0
83
0
Exponential Functions
Need help with graphs
The graph of the exponential function f(x) is shown below. Find f(x).
Guest
Jan 29, 2023
0
83
0
Binomial
Plz help with this
Fill in the blanks to make the equation true. Each blank should contain an integer.
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Guest
Jan 29, 2023
0
75
0
Binomial
Need help with binomial
The function f(n) satisfies
binom(2n)n - binom(2n + 1)(2n) = f(n) *binom(2n + 1)(n + 1)
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Guest
Jan 29, 2023
0
72
0
Counting
Need help with counting
Write the following expression as a single combination C(n,k) so that k neq 1 and n - k neq 1
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Guest
Jan 29, 2023
0
87
0
Algebra
Plz help with this
Let x be a real number such that 625*x = 64. Then 125*x = ___ sqrt(____)
read more ..
Guest
Jan 29, 2023
0
73
0
Counting
I need help with counting
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 be awarded
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Guest
Jan 29, 2023
0
103
1
Equation
Need help with this equation
Find all values of c such that 3*(2c + 1) = 28*(3*c) - 9. If you find more than one value of c, then list your values in increasing order, separated by commas.
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Guest
Jan 29, 2023
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