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All Questions
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206977 Questions
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41
3
Number Theory
What is the smallest prime divisor of 3^{11} + 5^7 + 1?
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Guest
Jan 14, 2022
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36
1
Algebra
Let r and s be the roots of 3x^2+4x+12 = x^2 - 5x + 7. Find r^2+s^2.
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Guest
Jan 14, 2022
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28
2
Number Theory
What is the largest positive integer n for which n^3+100 is divisible by n+1?
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Guest
Jan 14, 2022
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23
0
Counting problem
Find the number of subsets of {1, 2, 3, ..., 10}, where the sum of the smallest element and the largest element is equal to .
Guest
Jan 14, 2022
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35
1
Coordinates
For what value of k does the equation x^2+10x+y^2+16y-k=0 represent a circle of radius 6?
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Guest
Jan 14, 2022
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25
1
plz help
Given positive integers x and y such that x≠y and 1/x + 1/y = 1/18 + 1/2, what is the smallest possible value for x+y?
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Guest
Jan 14, 2022
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26
1
help with coordinates
In the diagram, the four points have coordinates A(0,1), B(1,4), C(5,3), and D(4,0). What is the area of quadrilateral ABCD?
read more ..
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Guest
Jan 14, 2022
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32
1
Math Homework
b⁰/b³?
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Guest
Jan 14, 2022
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37
2
+36
Math
George has 8 balloons. Tim has 33% more balloons than him. Their friend Frank has 1/5 as many balloons as Tim. How many balloons does Frank have?
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Slimesewer
Jan 14, 2022
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20
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Counting
Marvin the fly starts at $(0,0).$ Each step, Marvin moves one unit right or one unit up. He is trying to get to the point $(5,7)$. However, at there is a frog that will eat him if he goes through that point. In how many ways can Marvin reach $(5,7)$?
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Guest
Jan 14, 2022
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26
1
Number Theory
A very large number x is equal to $2^2 \cdot 3^3 \cdot 4^4 \cdot 5^5 \cdot 6^6$. What is the smallest positive integer that, when multiplied with x, produces a product that is a perfect square?
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Guest
Jan 14, 2022
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24
0
geometry
If you could explain how you got the answer that would be appreciated
The side lengths of an equiangular octagon are 1, 2, 3, 4, 1, 2, 3, and 4 in clockwise order. Find the octagon's area. Enter your answer in the form in simplest radical
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Guest
Jan 14, 2022
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23
0
Algebra
Let x, y, and z be nonzero real numbers. Find all possible values of x/|x| + y/|y| + z/|z|.
Guest
Jan 14, 2022
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19
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Logarithms
Suppose a does not equal 0. Compute log_{2^a} 8^b in terms of a and b.
Guest
Jan 14, 2022
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28
1
Probability
If I roll a fair, regular six-sided die four times, what is the probability that I will roll the number 5 exactly two times?
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Guest
Jan 14, 2022
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31
2
weird polygon thing
The side lengths of an equiangular octagon are 1, 2, 3, 4, 1, 2, 3, and 4 in clockwise order. Find the octagon's area.
Enter your answer in the form in simplest radical form.
read more ..
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Guest
Jan 14, 2022
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33
2
Probability
If 8 numbers are chosen at random from the first 16 positive integers, what is the probability that an additional number chosen at random from the remaining 8 numbers is less than any of the 8 previously chosen numbers?
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Guest
Jan 14, 2022
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40
2
Stats
Suppose ten distinct, positive integers have a median of . ("Distinct integers" means that no two integers are the same.) What is the smallest the average of those ten integers could be?
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Guest
Jan 14, 2022
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43
2
geometry
How many square units are in the area of the enclosed region in the diagram? All angles pictured are right angles
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Guest
Jan 14, 2022
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21
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Graphing
Find area of the isosceles triangle formed by the vertex and the x-intercepts of parabola .
Guest
Jan 14, 2022
Jan 13, 2022
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28
1
Algebra
The expression 6x^2 + 17x + 5 can be written in the form (Ax+1)(Bx+5) where A and B are integers. What is the value of AB?
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Guest
Jan 13, 2022
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35
2
help math
If (x+1/x):(x-7/x)=5:4, then find the value of x.
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Guest
Jan 13, 2022
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24
0
Number Theory
When N is divided by 10, the remainder is a. When N is divided by , the remainder is b. What is N modulo , in terms of a and b?
Guest
Jan 13, 2022
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35
1
Algebra
Let a and b with a > b > 0 be real numbers satisfying a^3 + b^3 = a + b. Find $\frac{(a + b)^2 - 1}{ab}$ .
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Guest
Jan 13, 2022
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