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Post New Question
All Questions
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237665 Questions
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310
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Geometry
Let XY be a tangent to a circle, and let XA be a secant of the circle, as shown below. If AX = 15 and XY = 8, then what is AB?
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Guest
Nov 29, 2021
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304
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Probability
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
Nov 29, 2021
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299
1
Probability
A stck has a length of 5 units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are shorter than 3 units?
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Guest
Nov 29, 2021
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235
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Geometry
In triangle ABC, M is the midpoint of AB. Let D be the midpoint of BC such that AD bisects angle BAC, and let the perpendicular bisector of AB intersect AD at E. If AB = 44, AC = 20, and ME = 12, then find the area of triangle ACD.
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Guest
Nov 29, 2021
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245
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Number Theory
If x^3 is a positive factor of 10!*11!, how many possible integer values of x are there?
Guest
Nov 29, 2021
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294
1
Number Theory
What is the sum of the smallest and second-smallest positive integers satisfying the congruence 27a = 40 (mod 43)?
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Guest
Nov 29, 2021
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301
3
Multistep Linear Equation
Hello, I was wondering if someone can help me on this problem.
4x + 2(x + 6) = 36
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Guest
Nov 29, 2021
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252
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Probability
Two real numbers are chosen at random between 0 and 2. What is the probability that the sum of their squares is no more than 1? Express your answer as a common fraction in terms of pi.
Guest
Nov 29, 2021
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340
3
Multistep Linear Equation
I was wondering if anyone could help me out on this problem?
2(5x + 8) = 6x + 20
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Guest
Nov 29, 2021
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317
1
Probability
Two different 2-digit numbers are randomly chosen and multiplied together. What is the probability that the resulting product is a multiple of 10?
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Guest
Nov 29, 2021
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243
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Help emergency q
If the product $\frac{3}{2}\cdot\frac{4}{3}\cdot\frac{5}{4}\cdot\frac{6}{5}\cdot\ldots\cdot\frac{a}{b}=9$, what is the sum of $a$ and $b$?
Guest
Nov 29, 2021
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245
0
Help please this is due in a few minutes
Please help me. I have a lot of questions. 1. A train takes 55 seconds to pass through a tunnel that is 990 m long. It takes another 35 seconds to cross a bridge that is 630 m long. What is the speed of the train? 2. Mr. Trump drove from Town A to Town
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Guest
Nov 29, 2021
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397
2
My homework is due really soon
Help! Math probs. 1. The ratio of Alice’s and Ben’s walking speed is 2:3. The ratio of Ben’s and Chloe’s walking speed is 4:5. If Chloe can cover 35 more meters than Alice in one minute, how many more meters ecan Ben cover in 10 minutes than Alice?
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Guest
Nov 29, 2021
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258
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Quadratic
If the quadratic 3x^2 + bx + 24 can be written in the form a(x + m)^2 + n, where m and n are integers, what is the largest integer that must be a divisor of b?
Guest
Nov 29, 2021
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243
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Domain
Suppose a function f(x) has domain (-inf,inf) and range [-11,3]. If we define a new function by
g(x) = 6f(x/2) + 1
then what is the range of g(x)? Express your answer in interval notation.
Guest
Nov 29, 2021
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309
1
Counting question
In how many ways can a total of 15 be obtained if 5 distinguishable standard dice are rolled?
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Guest
Nov 29, 2021
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311
3
Math
Giuseppe adds all but one of the first 15 positive integers. His sum is a square of the excluded number. Which number did Giuseppe not include?
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Guest
Nov 29, 2021
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440
2
CPhill gone
CPhill has not been on the site for a while, is he alright?
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Guest
Nov 29, 2021
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381
1
Inequality
Let x and y be real numbers such that xy=9 Find the set of all possible values of x+y
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Guest
Nov 29, 2021
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328
1
2.2 alternative ways to earn money
Leo is a self-employed plumber. One month, his plumbing business had three contracts for $2500.00, $7000.00, and $275.00. The cost of Leo's expenses and materials to complete these contracts was $7200.00. How much did Leo earn an hour based on a 40-hour
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Guest
Nov 29, 2021
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327
1
Probability
What is the probability that at least two of the faces match when you roll four fair six-sided dice? Express your answer as a common fraction.
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Guest
Nov 29, 2021
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242
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Quadratic
For how many integer values of a does the equation x^2 + ax + 28a = 0 have integer solutions for x?
Guest
Nov 29, 2021
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396
1
+4
Rewrite -15x-3y=45 so that y is a function of x
Rewrite -15x-3y=45 so that y is a function of x
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Nolifesoulz
Nov 29, 2021
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455
2
+69
This is not a math question!!!!
I was wondering what being a member is, cause it says that I am a member but I use the free version? Can anyone clarify???
Thnx!
Dev
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Feezbio201902
Nov 29, 2021
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