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229747 Questions
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84
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Algebra
Need help on this quick
Let S be the set of all real numbers of the form
a1/3 + a2/3^2 + a3/3^3 + ....
where a_i \in {0, 1, 2} for all i.
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Guest
Feb 2, 2023
0
86
0
Geometry
How do you prove this plz
Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.
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Guest
Feb 2, 2023
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84
0
Counting
There are 18 padded chairs around a circular table, and the chairs are numbered from 1 through 18 . How many ways can five people take their seats, so that no two people are adjacent?
Guest
Feb 2, 2023
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87
0
Counting
In how many ways can the numbers 1 through 5 be entered once each into the five boxes below so that all the given inequalities are true?
Guest
Feb 2, 2023
0
87
0
Interest Rates
Help I don't get interest rates
Chuck deposits $2000 into a bank account that compounds annually at an interest rate of . Assuming there are no other transactions, what will the balance be after years, in dollars?
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Guest
Feb 2, 2023
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113
1
+4
Mr. Bonds invested $5,000 in an account with an annual interest rate of 6% compounded continuously. Determine how many years, t, he must lea
Mr. Bonds invested $5,000 in an account with an annual interest rate of 6% compounded continuously. Determine how many years, t, he must leave his money in the account in order to double his investment. Approximately how many years until his investment
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Ant111805
Feb 2, 2023
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85
0
Counting
This is impossible
In a regular decagon, the sides are to be colored with five different colors, so that sides are diametrically opposite have the same color. (Not all five colors need to be used.) One possible coloring
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Guest
Feb 2, 2023
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83
0
geometry
Help I dont get this
In triangle ABC, the angle bisector of angle BAC meets AC at D. If angle BAC = 60, angle ABC = 60, and AD = 24, then find the area of triangle ABC.
Guest
Feb 2, 2023
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82
0
Inequality
Help with inequality
(a) Show that if a, b, c, d, e, f are nonnegative real numbers, then (a^2 + b^2)^2 (c^4 + d^4)(e^4 + f^4) >= 32abcdef.
(b) Show that if a, b, c, d, e, f are nonnegative real numbers,
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Guest
Feb 2, 2023
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76
0
Algebra
Fill in the blanks to make the equation true. (Each blank should contain a 2-digit number)
18/18 + 19/18 + 20/18 + ... + 45/18
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Guest
Feb 2, 2023
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78
0
Probability
Im getting wrong answer on this
A member of the junior varsity swim team will be elected as President. Each member is equally likely to be elected. The probability that a sophomore is elected is the probability that a freshman
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Guest
Feb 2, 2023
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83
0
Probability
Need help plz
In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12, and one SuperBall is drawn (at random) from red balls numbered from 13 to 20. When you buy a ticket,
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Guest
Feb 2, 2023
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78
0
Counting
Help how to solve using combination
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
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Guest
Feb 2, 2023
0
90
1
Help
use the quadratic formula to find an expression for the sum of the squares of the roots of the equation ax^2+bx+c=0
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Guest
Feb 2, 2023
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134
2
Math is hard
let r and s be the root of the quadratic x^2 + bx + c where b and c are constants. If (r-1)(s-1)=7, find b+c
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Guest
Feb 2, 2023
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108
2
Equations Help
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Guest
Feb 2, 2023
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75
0
Counting
Help need to count
In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color, and at lest three of the squares are red. How many ways are there
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Guest
Feb 2, 2023
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