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Post New Question
All Questions
+0
232802 Questions
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531
2
Algebra help please
How do you simplify x^28/y^-21 ?
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Guest
Jul 5, 2020
0
365
1
help
Alex, Bob, and five friends are randomly assigned seats on a train. Six of them will sit in two rows of 3 that face each other, while the last person will have to stand. What is the probability that Alex and Bob are sitting directly across from each other?
read more ..
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Guest
Jul 5, 2020
0
839
1
+334
Halp ASAp
For every mile of highway on land, the city needs two truckloads of asphalt and one gallon of paint. For every mile of highway on bridges, the city needs one truckload of asphalt and three gallons of paint. The city has 50 truckloads of asphalt and 80 gallons
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Rayjplayz
Jul 5, 2020
0
462
0
+334
Halp
In this problem, we investigate optimization in an infinite (unbounded) region of the plane. Consider the three inequalities
and
(a) Graph the region of points that satisfy
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Rayjplayz
Jul 5, 2020
0
357
0
help
Find constants A and B such that
Guest
Jul 5, 2020
0
582
1
+334
halp plz
Find the max. and min. values for 4x+y if -2 and .
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Rayjplayz
Jul 5, 2020
0
496
1
+334
help
Given that 0,a,b,c,d, which of the following is largest:
a+b/c+d, a+d/b+c, b+c/a+d, b+d/a+c, c+d/a+b
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Rayjplayz
Jul 5, 2020
+1
736
1
+334
Optimization
Mitch's pool can hold 10,000 gallons of water. At noon, the pool is 80% full. Unfortunately, the pool has a leak, and it loses 120 gallons of water every hour. Mitch turns on a hose at noon that fills the pool at a rate of 225 gallons per hour. He checks
read more ..
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Rayjplayz
Jul 5, 2020
Jul 4, 2020
0
517
1
need help with geometry
The diagram consists of a large circle and four small circles.
Each of the smaller circles has radius 1 and touches the large circle and the two small circles next on either side of it.
What is the area of the shaded region?
read more ..
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Guest
Jul 4, 2020
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495
1
help
If x satisfy the equation , find the value of
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Guest
Jul 4, 2020
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528
1
help
For how many positive integers n such that 7n+1 is divisible by 3n+5?
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Guest
Jul 4, 2020
0
460
2
HELP ASAP
What is (n/n-1) for any positive integer n? (Answer in terms of n.)
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Guest
Jul 4, 2020
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443
2
counting
In how many ways can 3 distinct numbers be chosen from the set {1,2,3,…,10} such that the sum of the numbers is odd?
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Guest
Jul 4, 2020
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508
2
quadratic
Find the vertex of the graph of the equation y = -2x^2 + 9x - 18.
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Guest
Jul 4, 2020
0
467
4
help with counting
How many 4 digit even numbers can be formed using the numbers 2,3,5,8,9?
Note: The same number can repeat. For example, 2222 must also be counted
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Guest
Jul 4, 2020
0
558
3
help
Jack has y chocolates and Jill has x chocolates.
If Jack gives 1 chocolate to Jill, then they will have an equal number of chocolates.
If Jill gives 1 chocolate to Jack, then Jack will have twice as many chocolates as Jill.
read more ..
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Guest
Jul 4, 2020
0
1117
2
help
There are ten people in the Baking Club, including Mark. They choose $3$ people to form an executive committee. How many possible committees could be formed that include Mark?
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Guest
Jul 4, 2020
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423
1
Answer to the question below my post.
A lot. You probably have to ask them yourself. But be careful of 667. He's pretty obsessive of his possessions.
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Guest
Jul 4, 2020
0
423
2
helpp
How many three-digit whole numbers have at least one 7 or at least one 9 as digits?
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Guest
Jul 4, 2020
0
392
1
help
Let A and B be subsets of {1, 2, 3, ..., 10}. Find the number of pairs (A,B) such that
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Guest
Jul 4, 2020
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564
3
PLEASE HELP ASAP
There are ten people in the Baking Club, including Mark. They choose $3$ people to form an executive committee. How many possible committees can be formed?
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Guest
Jul 4, 2020
0
464
2
help
Once upon a time there was a man who sold eggs for his livelyhood. One day he was going to sell those eggs and suddenly collide to a drunkardand all eggs were smashed.So he complaint to head of village and he asked him how many eggs were there.In response
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Guest
Jul 4, 2020
0
442
1
HELP ASAP
Find the constant c such that (x^2-4x+3)(x+5) - (x^2+4x-5)(x-c)= 0, for all x.
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Guest
Jul 4, 2020
0
480
1
help
Solve
I have no idea how to do this.
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Guest
Jul 4, 2020
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