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Post New Question
All Questions
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230590 Questions
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374
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please help
Two piggy banks contains some coins. The first piggy bank contains 4 fair coins and 2 biased coins in favor of heads. The second piggy bank contains 2 fair coins and 4 biased coins in favor of tails. The biased coins follow the odds 2:1. A piggy bank is
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Guest
Jun 15, 2020
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596
2
help
How many ways can you rearrange the letters in BANANA so that no letter winds up in the same spot?
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Guest
Jun 15, 2020
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351
0
help
In △ABC, ∠ABC=30°. Points P and Q are chosen on AC such that AP+BC= AB+CQ The internal angle bisector of ∠ABC intersects AC at R. Given that R is the midpoint of PQ, find ∠BAC (in degrees).
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Guest
Jun 15, 2020
0
846
2
Probability from Verbal Description
In a class 22 of students, 17 play an instrument and 12 play a sport. There are 10 students who play an instrument and also play a sport. What is the probability that a student who plays a sport also plays an instrument?
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Guest
Jun 15, 2020
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498
2
help
The curve above represents a parabola, it has an x-intercept of -1 and y-intercept of 2. Find the area of the square.
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Guest
Jun 15, 2020
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1
1821
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+80
pls help asap
You take the four Aces, four $2$'s, and four $3$'s from a standard deck of 52 cards, forming a set of $12$ cards. You then deal all $12$ cards at random to four players, so that each player gets three cards. What is the probability that each player gets
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Sarvajit
Jun 15, 2020
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378
1
help
Calculate the value of:
when x is a positive integer.
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Guest
Jun 15, 2020
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383
1
help
If the following infinite series S is evaluated as a decimal,what is the 37th digit to the right of the decimal place?
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Guest
Jun 15, 2020
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432
1
help
Find the sum of the digits in the numbers 1, 2, 3, ..., 97, 98, 99.
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Guest
Jun 15, 2020
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1
1789
1
Help please
I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 30 miles per hour instead, then I would have arrived 20 minutes later. How many miles did I drive?
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Guest
Jun 15, 2020
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499
1
A Word Problem
A circle has the equaton (x-2)^2+(y+3)^2=4 and a line has the equation 5y-4x+20=0.
a) What is the distance from the center of the circel to the line.
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Guest
Jun 15, 2020
-1
645
4
+26
Number Theory
How many multisets of cardinality 3 made from {a,b,c,d}{a,b,c,d}?
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guesttttt
Jun 15, 2020
-1
601
2
+26
Number theory
Show that if p > 3 is a prime, then p^2 ≡ 1 (mod 24)
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guesttttt
Jun 15, 2020
-1
552
0
+26
Number theory
Show that if p > 3 is a prime, then p^2 ≡ 1 (mod 24)
guesttttt
Jun 15, 2020
-1
551
2
+26
Algebra
K=1/3
I=9
W=7/9
What's KI * WI
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guesttttt
Jun 15, 2020
0
967
1
+35
Help Plz Urgent!
Diane has one 1-cent stamp, two identical 2-cent stamps, and so on, up to nine identical 9-cent stamps. In how many different arrangements can Diane paste exactly 10 cents worth of postage in a row across the top of an envelope? (Note, however, that simply
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Mosspelt6
Jun 15, 2020
-1
504
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+26
equation
(2x + 3)(x^2 − x − 5).
expand
guesttttt
Jun 15, 2020
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390
1
Geometry Questions
1. Find the area of the Convex Quadrilateral with vertices (1,5), (2,3), (7,6), (7,1)
2) A line goes through (2,3),and (-8,-2). The line has an X intercept
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Guest
Jun 15, 2020
-1
666
1
+26
algebra
what is the slope of a line drawn between the points (-5,5) and (3,-1)?
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guesttttt
Jun 15, 2020
-1
539
0
+26
algebra
-x - 1 = 221 + 2x
guesttttt
Jun 15, 2020
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372
1
Some Geometry Questions
1) Find the Area of Triangle ABC
2) In the diagram, sin A =0.8. Find Tan C.
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Guest
Jun 15, 2020
0
648
3
Let the number of ways for a rook to return to its original square on a 4 × 4 chessboard...
Let the number of ways for a rook to return to its original square on a 4 × 4 chessboard in 8 moves if it starts on a corner be k. Find the number of positive integers that are divisors of k. Note: a "move" counts as shifting the rook by a positive number
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Guest
Jun 15, 2020
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327
0
help D:
(2/n + 456238/n^2)/(1/n + 0,007868/n^2)
Guest
Jun 15, 2020
0
443
1
The perfect square game is played as follows: player 1 says a positive integer, then player 2 says a strictly smaller positive integer, and
The perfect square game is played as follows: player 1 says a positive integer, then player 2 says a strictly smaller positive integer, and so on. The game ends when someone says 1; that player wins if and only if the sum of all numbers said is a perfect
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Guest
Jun 15, 2020
0
522
1
Geometry
Let be a triangle with MB = 4 and MT = 7. Furthermore, let circle ω be a circle with center O which is tangent to MB at B and MT at some point on segment MT. Given OM = 6 and ω intersect BT at I B, find the length of TI.
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Guest
Jun 15, 2020
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