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Post New Question
All Questions
+0
230542 Questions
0
336
1
Fractions/Decimals
If a person is selling the north half of the northwest quarter of an 880-acre piece of land, how many acres will be left?
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Guest
Nov 26, 2020
0
337
1
algebra
GetThere Airlines currently charges 200 dollars per ticket and sells 40,000 tickets a week. For every 12 dollars they increase the ticket price, they sell 500 fewer tickets a week. How many dollars should they charge to maximize their total revenue?
read more ..
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Guest
Nov 26, 2020
0
448
1
maximum possible value of the greatest common divisor
What is the maximum possible value of the greatest common divisor of two consecutive terms of the sequence a_n = n^2 - 1, where n is greater than 0?
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Guest
Nov 26, 2020
0
548
3
I pick two whole numbers x and y
I pick two whole numbers x and y between 1 and 10 inclusive (not necessarily distinct). My friend picks two numbers x - 4 and 2y + 1. If the product of my friend's numbers is one greater than the product of my numbers, then what is the product of my numbers?
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Guest
Nov 26, 2020
-4
536
0
+73
Information on model year (since 2000) and annual maintenance costs for a random sample of a particular car model resulted
Information on model year (since 2000) and annual maintenance costs for a random sample of a particular car model resulted in the regression line: ĉ = 1625 - 44(year). If 83 percent of the variation in maintenance cost is explained by the model year of
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GAMEMASTERX40
Nov 26, 2020
-4
408
0
+73
In general higher temperatures are associated with higher ice cream consumption (gallons per person).
In general higher temperatures are associated with higher ice cream consumption (gallons per person). If you were designing a study to confirm this,
A. gallons per person is the explanatory variable, and you expect to find a positive association.
B. gallons
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GAMEMASTERX40
Nov 26, 2020
0
577
2
Given that a and b are positive integers
Given that a and b are positive integers and that a + b = 24 , what is the value of ab if 2ab + 10a = 3b + 257 ?
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Guest
Nov 26, 2020
+1
688
4
+57
help asap
Bill and Betty do chores at home. Bill mows the lawn every 8 days, and
Betty bathes the dog every 14 days. Suppose Bill and Betty do their
chores today. How many days will pass before they both do their
chores on the same day again?
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mav002
Nov 26, 2020
+1
680
1
A regular pentagon is rotated
A regular pentagon is rotated counterclockwise about its center until it coincides with its original position. If the pentagon is rotated by an obtuse angle, then what is the obtuse angle?
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Guest
Nov 26, 2020
+1
716
1
What is the sum of all integers x
What is the sum of all integers x that satisfy 4 - x >= 3 and 3x + 15 >= 2?
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Guest
Nov 26, 2020
+2
351
0
+10
polynomial proof
Let S(f) denote the sum of the roots of f(x), a nonconstant polynomial with real coefficients. Let p(x) and q(x) be nonconstant polynomial with real coefficients so that S(p)=7, S(q)=9 and S(p-q)=11. Find, with proof, the possible values for S(p+q).
read more ..
redasfiregreenasleaf
Nov 26, 2020
+3
662
1
+40
Help please?
What is the sum of all real values of x that satisfy the equation (x-3)(x^2+4x+4)=x-3?
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ChattyChen
Nov 26, 2020
+1
617
1
A cook has 10 red peppers and 5 green peppers.
A cook has 10 red peppers and 5 green peppers. If the cook selects 6 peppers at random, what is the probability that he selects at least 3 green peppers? Express your answer as a common fraction.
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Guest
Nov 26, 2020
0
403
2
help quick!
Triangle ABC has circumcenter O. If AB = 10 and [OAB] = 30 find the circumradius of triangle ABC.
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Guest
Nov 26, 2020
0
384
2
modular arithmetic
How many positive integers n satisfy 127 = 3 (mod n)? n = 1 is allowed.
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Guest
Nov 26, 2020
0
491
3
algebra
Find all integers n such that the quadratic 7x^2 + nx + 18 can be expressed as the product of two linear factors with integer coefficients.
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Guest
Nov 26, 2020
0
403
2
right triangle
A right triangle has legs of length 6 and b and a hypotenuse of length c. The perimeter of the triangle is 24. Compute c.
OlympusHero
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Guest
Nov 26, 2020
0
504
1
Find a linear inequality with the following solution set
Find a linear inequality with the following solution set. Each grid line represents one unit.
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Guest
Nov 26, 2020
0
361
1
Let an integer be bad
Let an integer be bad if there is no way to insert a colon among the digits of to form a time of day (on a twelve-hour, digital clock), and good if a colon can be inserted to form a time. For example, 100 is good because we can write
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Guest
Nov 26, 2020
+1
425
2
+10
Polynomial question
Let S(f) denote the sum of the roots of f(x), a nonconstant polynomial with real coefficients. Let p(x) and q(x) be nonconstant polynomial with real coefficients so that S(p)=7, S(q)=9 and S(p-q)=11. What are the possible values for S(p+q)?
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redasfiregreenasleaf
Nov 26, 2020
0
430
1
pixel density
What is the pixel density (in PPI) for a mobile device which has a screen size of 4 inches on the diagonal and a resolution of 1080 x 720 pixels? Assume the pixels are evenly distributed across the screen. (Give your answer to the nearest whole value and
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Guest
Nov 26, 2020
0
459
1
The four vertices of a regular tetrahedron are snipped off
The four vertices of a regular tetrahedron are snipped off, leaving an equilateral triangular face in place of each corner and a regular hexagonal face in place of each original face of the tetrahedron. What is the
read more ..
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Guest
Nov 26, 2020
0
517
2
Given positive integers x and y such that x is not equal to y
Given positive integers x and y such that x is not equal to y and 1/x + 1/y = 1/24, what is the smallest possible positive value for x + y?
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Guest
Nov 26, 2020
0
309
1
number theory
The units digit of a perfect square is 9. What are the possible values of the tens digit?
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Guest
Nov 26, 2020
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